Home / 3,149.73-4,724.60-841.23

Finding the Fourth Proportional to 3,149.73, 4,724.60 and 841.23

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Solution

The fourth proportional to 3,149.73, 4,724.60 and 841.23 is: 1,261.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.73 : 4,724.60 = 841.23 : x
  2. Step 2: Convert to fraction form
    3,149.73/4,724.60 = 841.23/x
  3. Step 3: Cross multiply
    3,149.73x = 4,724.60 × 841.23
  4. Step 4: Simplify right side
    3,149.73x = 3,974,471.05
  5. Step 5: Solve for x
    x = 3,974,471.05/3,149.73
  6. Step 6: Final answer
    x = 1,261.85

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Similar ratio
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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.