Home / 5,487.14-7,572.69-3,129.23

Finding the Fourth Proportional to 5,487.14, 7,572.69 and 3,129.23

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Solution

The fourth proportional to 5,487.14, 7,572.69 and 3,129.23 is: 4,318.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,487.14 : 7,572.69 = 3,129.23 : x
  2. Step 2: Convert to fraction form
    5,487.14/7,572.69 = 3,129.23/x
  3. Step 3: Cross multiply
    5,487.14x = 7,572.69 × 3,129.23
  4. Step 4: Simplify right side
    5,487.14x = 23,696,707.66
  5. Step 5: Solve for x
    x = 23,696,707.66/5,487.14
  6. Step 6: Final answer
    x = 4,318.59

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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.