Home / 7,408.82-10,220.46-4,888.28

Finding the Fourth Proportional to 7,408.82, 10,220.46 and 4,888.28

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Solution

The fourth proportional to 7,408.82, 10,220.46 and 4,888.28 is: 6,743.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,408.82 : 10,220.46 = 4,888.28 : x
  2. Step 2: Convert to fraction form
    7,408.82/10,220.46 = 4,888.28/x
  3. Step 3: Cross multiply
    7,408.82x = 10,220.46 × 4,888.28
  4. Step 4: Simplify right side
    7,408.82x = 49,960,470.21
  5. Step 5: Solve for x
    x = 49,960,470.21/7,408.82
  6. Step 6: Final answer
    x = 6,743.38

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Find fourth proportional to 3,704.41, 5,110.23 and 2,444.14
Half scale
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Double scale
Find fourth proportional to 7,409.82, 10,221.84 and 4,889.28
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.