Home / 7,092.90-9,787.50-3,949.02

Finding the Fourth Proportional to 7,092.90, 9,787.50 and 3,949.02

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Solution

The fourth proportional to 7,092.90, 9,787.50 and 3,949.02 is: 5,449.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,092.90 : 9,787.50 = 3,949.02 : x
  2. Step 2: Convert to fraction form
    7,092.90/9,787.50 = 3,949.02/x
  3. Step 3: Cross multiply
    7,092.90x = 9,787.50 × 3,949.02
  4. Step 4: Simplify right side
    7,092.90x = 38,651,033.25
  5. Step 5: Solve for x
    x = 38,651,033.25/7,092.90
  6. Step 6: Final answer
    x = 5,449.26

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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.