Home / 4,127.20-6,191.20-1,529.76

Finding the Fourth Proportional to 4,127.20, 6,191.20 and 1,529.76

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Solution

The fourth proportional to 4,127.20, 6,191.20 and 1,529.76 is: 2,294.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,127.20 : 6,191.20 = 1,529.76 : x
  2. Step 2: Convert to fraction form
    4,127.20/6,191.20 = 1,529.76/x
  3. Step 3: Cross multiply
    4,127.20x = 6,191.20 × 1,529.76
  4. Step 4: Simplify right side
    4,127.20x = 9,471,050.11
  5. Step 5: Solve for x
    x = 9,471,050.11/4,127.20
  6. Step 6: Final answer
    x = 2,294.79

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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.