Home / 6,312.25-8,711.18-3,517.75

Finding the Fourth Proportional to 6,312.25, 8,711.18 and 3,517.75

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Solution

The fourth proportional to 6,312.25, 8,711.18 and 3,517.75 is: 4,854.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,312.25 : 8,711.18 = 3,517.75 : x
  2. Step 2: Convert to fraction form
    6,312.25/8,711.18 = 3,517.75/x
  3. Step 3: Cross multiply
    6,312.25x = 8,711.18 × 3,517.75
  4. Step 4: Simplify right side
    6,312.25x = 30,643,753.45
  5. Step 5: Solve for x
    x = 30,643,753.45/6,312.25
  6. Step 6: Final answer
    x = 4,854.65

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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.