Home / 7,092.38-9,787.55-3,948.63

Finding the Fourth Proportional to 7,092.38, 9,787.55 and 3,948.63

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Solution

The fourth proportional to 7,092.38, 9,787.55 and 3,948.63 is: 5,449.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,092.38 : 9,787.55 = 3,948.63 : x
  2. Step 2: Convert to fraction form
    7,092.38/9,787.55 = 3,948.63/x
  3. Step 3: Cross multiply
    7,092.38x = 9,787.55 × 3,948.63
  4. Step 4: Simplify right side
    7,092.38x = 38,647,393.81
  5. Step 5: Solve for x
    x = 38,647,393.81/7,092.38
  6. Step 6: Final answer
    x = 5,449.15

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1.5x scale

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.