Home / 1,874.28-2,585.88-1,211.97

Finding the Fourth Proportional to 1,874.28, 2,585.88 and 1,211.97

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Solution

The fourth proportional to 1,874.28, 2,585.88 and 1,211.97 is: 1,672.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874.28 : 2,585.88 = 1,211.97 : x
  2. Step 2: Convert to fraction form
    1,874.28/2,585.88 = 1,211.97/x
  3. Step 3: Cross multiply
    1,874.28x = 2,585.88 × 1,211.97
  4. Step 4: Simplify right side
    1,874.28x = 3,134,008.98
  5. Step 5: Solve for x
    x = 3,134,008.98/1,874.28
  6. Step 6: Final answer
    x = 1,672.11

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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.