Home / 5,680.17-8,517.60-3,145.56

Finding the Fourth Proportional to 5,680.17, 8,517.60 and 3,145.56

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Solution

The fourth proportional to 5,680.17, 8,517.60 and 3,145.56 is: 4,716.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,680.17 : 8,517.60 = 3,145.56 : x
  2. Step 2: Convert to fraction form
    5,680.17/8,517.60 = 3,145.56/x
  3. Step 3: Cross multiply
    5,680.17x = 8,517.60 × 3,145.56
  4. Step 4: Simplify right side
    5,680.17x = 26,792,621.86
  5. Step 5: Solve for x
    x = 26,792,621.86/5,680.17
  6. Step 6: Final answer
    x = 4,716.87

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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.