Home / 2,135.11-2,946.72-1,251.25

Finding the Fourth Proportional to 2,135.11, 2,946.72 and 1,251.25

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Solution

The fourth proportional to 2,135.11, 2,946.72 and 1,251.25 is: 1,726.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.11 : 2,946.72 = 1,251.25 : x
  2. Step 2: Convert to fraction form
    2,135.11/2,946.72 = 1,251.25/x
  3. Step 3: Cross multiply
    2,135.11x = 2,946.72 × 1,251.25
  4. Step 4: Simplify right side
    2,135.11x = 3,687,083.40
  5. Step 5: Solve for x
    x = 3,687,083.40/2,135.11
  6. Step 6: Final answer
    x = 1,726.88

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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.