Home / 5,280.60-7,912.62-2,814.76

Finding the Fourth Proportional to 5,280.60, 7,912.62 and 2,814.76

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Solution

The fourth proportional to 5,280.60, 7,912.62 and 2,814.76 is: 4,217.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.60 : 7,912.62 = 2,814.76 : x
  2. Step 2: Convert to fraction form
    5,280.60/7,912.62 = 2,814.76/x
  3. Step 3: Cross multiply
    5,280.60x = 7,912.62 × 2,814.76
  4. Step 4: Simplify right side
    5,280.60x = 22,272,126.27
  5. Step 5: Solve for x
    x = 22,272,126.27/5,280.60
  6. Step 6: Final answer
    x = 4,217.73

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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.