Home / 3,138,240.80-4,707,361.20-2,221,505.10

Finding the Fourth Proportional to 3,138,240.80, 4,707,361.20 and 2,221,505.10

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Solution

The fourth proportional to 3,138,240.80, 4,707,361.20 and 2,221,505.10 is: 3,332,257.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,240.80 : 4,707,361.20 = 2,221,505.10 : x
  2. Step 2: Convert to fraction form
    3,138,240.80/4,707,361.20 = 2,221,505.10/x
  3. Step 3: Cross multiply
    3,138,240.80x = 4,707,361.20 × 2,221,505.10
  4. Step 4: Simplify right side
    3,138,240.80x = 10,457,426,913,342.12
  5. Step 5: Solve for x
    x = 10,457,426,913,342.12/3,138,240.80
  6. Step 6: Final answer
    x = 3,332,257.65

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Double scale
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Similar ratio
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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.