Home / 3,321.60-4,981.78-1,472.77

Finding the Fourth Proportional to 3,321.60, 4,981.78 and 1,472.77

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Solution

The fourth proportional to 3,321.60, 4,981.78 and 1,472.77 is: 2,208.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.60 : 4,981.78 = 1,472.77 : x
  2. Step 2: Convert to fraction form
    3,321.60/4,981.78 = 1,472.77/x
  3. Step 3: Cross multiply
    3,321.60x = 4,981.78 × 1,472.77
  4. Step 4: Simplify right side
    3,321.60x = 7,337,016.13
  5. Step 5: Solve for x
    x = 7,337,016.13/3,321.60
  6. Step 6: Final answer
    x = 2,208.88

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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.