Home / 5,415.33-8,122.98-4,431.18

Finding the Fourth Proportional to 5,415.33, 8,122.98 and 4,431.18

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Solution

The fourth proportional to 5,415.33, 8,122.98 and 4,431.18 is: 6,646.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.33 : 8,122.98 = 4,431.18 : x
  2. Step 2: Convert to fraction form
    5,415.33/8,122.98 = 4,431.18/x
  3. Step 3: Cross multiply
    5,415.33x = 8,122.98 × 4,431.18
  4. Step 4: Simplify right side
    5,415.33x = 35,994,386.52
  5. Step 5: Solve for x
    x = 35,994,386.52/5,415.33
  6. Step 6: Final answer
    x = 6,646.76

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.