Home / 3,724.97-5,590.14-1,385.30

Finding the Fourth Proportional to 3,724.97, 5,590.14 and 1,385.30

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Solution

The fourth proportional to 3,724.97, 5,590.14 and 1,385.30 is: 2,078.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,724.97 : 5,590.14 = 1,385.30 : x
  2. Step 2: Convert to fraction form
    3,724.97/5,590.14 = 1,385.30/x
  3. Step 3: Cross multiply
    3,724.97x = 5,590.14 × 1,385.30
  4. Step 4: Simplify right side
    3,724.97x = 7,744,020.94
  5. Step 5: Solve for x
    x = 7,744,020.94/3,724.97
  6. Step 6: Final answer
    x = 2,078.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.