Home / 3,320.66-4,981.22-1,240.62

Finding the Fourth Proportional to 3,320.66, 4,981.22 and 1,240.62

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Solution

The fourth proportional to 3,320.66, 4,981.22 and 1,240.62 is: 1,861.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.66 : 4,981.22 = 1,240.62 : x
  2. Step 2: Convert to fraction form
    3,320.66/4,981.22 = 1,240.62/x
  3. Step 3: Cross multiply
    3,320.66x = 4,981.22 × 1,240.62
  4. Step 4: Simplify right side
    3,320.66x = 6,179,801.16
  5. Step 5: Solve for x
    x = 6,179,801.16/3,320.66
  6. Step 6: Final answer
    x = 1,861.02

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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.