Home / 5,686.20-8,529.30-3,717.90

Finding the Fourth Proportional to 5,686.20, 8,529.30 and 3,717.90

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Solution

The fourth proportional to 5,686.20, 8,529.30 and 3,717.90 is: 5,576.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,686.20 : 8,529.30 = 3,717.90 : x
  2. Step 2: Convert to fraction form
    5,686.20/8,529.30 = 3,717.90/x
  3. Step 3: Cross multiply
    5,686.20x = 8,529.30 × 3,717.90
  4. Step 4: Simplify right side
    5,686.20x = 31,711,084.47
  5. Step 5: Solve for x
    x = 31,711,084.47/5,686.20
  6. Step 6: Final answer
    x = 5,576.85

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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.