Home / 2,585.06-3,876.91-1,123.88

Finding the Fourth Proportional to 2,585.06, 3,876.91 and 1,123.88

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Solution

The fourth proportional to 2,585.06, 3,876.91 and 1,123.88 is: 1,685.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,585.06 : 3,876.91 = 1,123.88 : x
  2. Step 2: Convert to fraction form
    2,585.06/3,876.91 = 1,123.88/x
  3. Step 3: Cross multiply
    2,585.06x = 3,876.91 × 1,123.88
  4. Step 4: Simplify right side
    2,585.06x = 4,357,165.74
  5. Step 5: Solve for x
    x = 4,357,165.74/2,585.06
  6. Step 6: Final answer
    x = 1,685.52

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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.