Home / 1,882.72-2,811.56-1,862.38

Finding the Fourth Proportional to 1,882.72, 2,811.56 and 1,862.38

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Solution

The fourth proportional to 1,882.72, 2,811.56 and 1,862.38 is: 2,781.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,882.72 : 2,811.56 = 1,862.38 : x
  2. Step 2: Convert to fraction form
    1,882.72/2,811.56 = 1,862.38/x
  3. Step 3: Cross multiply
    1,882.72x = 2,811.56 × 1,862.38
  4. Step 4: Simplify right side
    1,882.72x = 5,236,193.11
  5. Step 5: Solve for x
    x = 5,236,193.11/1,882.72
  6. Step 6: Final answer
    x = 2,781.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.