Home / 5,177.20-7,760.92-2,577.68

Finding the Fourth Proportional to 5,177.20, 7,760.92 and 2,577.68

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Solution

The fourth proportional to 5,177.20, 7,760.92 and 2,577.68 is: 3,864.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.20 : 7,760.92 = 2,577.68 : x
  2. Step 2: Convert to fraction form
    5,177.20/7,760.92 = 2,577.68/x
  3. Step 3: Cross multiply
    5,177.20x = 7,760.92 × 2,577.68
  4. Step 4: Simplify right side
    5,177.20x = 20,005,168.27
  5. Step 5: Solve for x
    x = 20,005,168.27/5,177.20
  6. Step 6: Final answer
    x = 3,864.09

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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.