Home / 5,161.44-7,122.72-3,144.18

Finding the Fourth Proportional to 5,161.44, 7,122.72 and 3,144.18

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Solution

The fourth proportional to 5,161.44, 7,122.72 and 3,144.18 is: 4,338.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,161.44 : 7,122.72 = 3,144.18 : x
  2. Step 2: Convert to fraction form
    5,161.44/7,122.72 = 3,144.18/x
  3. Step 3: Cross multiply
    5,161.44x = 7,122.72 × 3,144.18
  4. Step 4: Simplify right side
    5,161.44x = 22,395,113.77
  5. Step 5: Solve for x
    x = 22,395,113.77/5,161.44
  6. Step 6: Final answer
    x = 4,338.93

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Half scale
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Double scale
Find fourth proportional to 5,162.44, 7,124.10 and 3,145.18
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.