Home / 3,724.85-5,141.45-2,398.55

Finding the Fourth Proportional to 3,724.85, 5,141.45 and 2,398.55

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Solution

The fourth proportional to 3,724.85, 5,141.45 and 2,398.55 is: 3,310.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,724.85 : 5,141.45 = 2,398.55 : x
  2. Step 2: Convert to fraction form
    3,724.85/5,141.45 = 2,398.55/x
  3. Step 3: Cross multiply
    3,724.85x = 5,141.45 × 2,398.55
  4. Step 4: Simplify right side
    3,724.85x = 12,332,005.19
  5. Step 5: Solve for x
    x = 12,332,005.19/3,724.85
  6. Step 6: Final answer
    x = 3,310.74

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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.