Home / 7,020.31-9,688.27-4,035.61

Finding the Fourth Proportional to 7,020.31, 9,688.27 and 4,035.61

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Solution

The fourth proportional to 7,020.31, 9,688.27 and 4,035.61 is: 5,569.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,020.31 : 9,688.27 = 4,035.61 : x
  2. Step 2: Convert to fraction form
    7,020.31/9,688.27 = 4,035.61/x
  3. Step 3: Cross multiply
    7,020.31x = 9,688.27 × 4,035.61
  4. Step 4: Simplify right side
    7,020.31x = 39,098,079.29
  5. Step 5: Solve for x
    x = 39,098,079.29/7,020.31
  6. Step 6: Final answer
    x = 5,569.28

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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.