Home / 5,478.27-8,209.68-3,134.76

Finding the Fourth Proportional to 5,478.27, 8,209.68 and 3,134.76

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Solution

The fourth proportional to 5,478.27, 8,209.68 and 3,134.76 is: 4,697.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478.27 : 8,209.68 = 3,134.76 : x
  2. Step 2: Convert to fraction form
    5,478.27/8,209.68 = 3,134.76/x
  3. Step 3: Cross multiply
    5,478.27x = 8,209.68 × 3,134.76
  4. Step 4: Simplify right side
    5,478.27x = 25,735,376.48
  5. Step 5: Solve for x
    x = 25,735,376.48/5,478.27
  6. Step 6: Final answer
    x = 4,697.72

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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.