Home / 2,691.38-4,032.91-1,811.99

Finding the Fourth Proportional to 2,691.38, 4,032.91 and 1,811.99

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Solution

The fourth proportional to 2,691.38, 4,032.91 and 1,811.99 is: 2,715.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.38 : 4,032.91 = 1,811.99 : x
  2. Step 2: Convert to fraction form
    2,691.38/4,032.91 = 1,811.99/x
  3. Step 3: Cross multiply
    2,691.38x = 4,032.91 × 1,811.99
  4. Step 4: Simplify right side
    2,691.38x = 7,307,592.59
  5. Step 5: Solve for x
    x = 7,307,592.59/2,691.38
  6. Step 6: Final answer
    x = 2,715.18

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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.