Home / 1,948.97-2,689.09-1,152.31

Finding the Fourth Proportional to 1,948.97, 2,689.09 and 1,152.31

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Solution

The fourth proportional to 1,948.97, 2,689.09 and 1,152.31 is: 1,589.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.97 : 2,689.09 = 1,152.31 : x
  2. Step 2: Convert to fraction form
    1,948.97/2,689.09 = 1,152.31/x
  3. Step 3: Cross multiply
    1,948.97x = 2,689.09 × 1,152.31
  4. Step 4: Simplify right side
    1,948.97x = 3,098,665.30
  5. Step 5: Solve for x
    x = 3,098,665.30/1,948.97
  6. Step 6: Final answer
    x = 1,589.90

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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.