Home / 1,843.59-2,540.52-1,318.71

Finding the Fourth Proportional to 1,843.59, 2,540.52 and 1,318.71

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Solution

The fourth proportional to 1,843.59, 2,540.52 and 1,318.71 is: 1,817.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,843.59 : 2,540.52 = 1,318.71 : x
  2. Step 2: Convert to fraction form
    1,843.59/2,540.52 = 1,318.71/x
  3. Step 3: Cross multiply
    1,843.59x = 2,540.52 × 1,318.71
  4. Step 4: Simplify right side
    1,843.59x = 3,350,209.13
  5. Step 5: Solve for x
    x = 3,350,209.13/1,843.59
  6. Step 6: Final answer
    x = 1,817.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.