Home / 5,414.80-8,120.92-2,335.12

Finding the Fourth Proportional to 5,414.80, 8,120.92 and 2,335.12

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Solution

The fourth proportional to 5,414.80, 8,120.92 and 2,335.12 is: 3,502.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,414.80 : 8,120.92 = 2,335.12 : x
  2. Step 2: Convert to fraction form
    5,414.80/8,120.92 = 2,335.12/x
  3. Step 3: Cross multiply
    5,414.80x = 8,120.92 × 2,335.12
  4. Step 4: Simplify right side
    5,414.80x = 18,963,322.71
  5. Step 5: Solve for x
    x = 18,963,322.71/5,414.80
  6. Step 6: Final answer
    x = 3,502.13

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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.