Home / 3,321.92-4,981.28-1,242.24

Finding the Fourth Proportional to 3,321.92, 4,981.28 and 1,242.24

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Solution

The fourth proportional to 3,321.92, 4,981.28 and 1,242.24 is: 1,862.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.92 : 4,981.28 = 1,242.24 : x
  2. Step 2: Convert to fraction form
    3,321.92/4,981.28 = 1,242.24/x
  3. Step 3: Cross multiply
    3,321.92x = 4,981.28 × 1,242.24
  4. Step 4: Simplify right side
    3,321.92x = 6,187,945.27
  5. Step 5: Solve for x
    x = 6,187,945.27/3,321.92
  6. Step 6: Final answer
    x = 1,862.76

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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.