Home / 5,487.02-7,572.10-3,129.10

Finding the Fourth Proportional to 5,487.02, 7,572.10 and 3,129.10

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Solution

The fourth proportional to 5,487.02, 7,572.10 and 3,129.10 is: 4,318.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,487.02 : 7,572.10 = 3,129.10 : x
  2. Step 2: Convert to fraction form
    5,487.02/7,572.10 = 3,129.10/x
  3. Step 3: Cross multiply
    5,487.02x = 7,572.10 × 3,129.10
  4. Step 4: Simplify right side
    5,487.02x = 23,693,858.11
  5. Step 5: Solve for x
    x = 23,693,858.11/5,487.02
  6. Step 6: Final answer
    x = 4,318.17

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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.