Home / 1,874.52-2,586.92-1,078.10

Finding the Fourth Proportional to 1,874.52, 2,586.92 and 1,078.10

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Solution

The fourth proportional to 1,874.52, 2,586.92 and 1,078.10 is: 1,487.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874.52 : 2,586.92 = 1,078.10 : x
  2. Step 2: Convert to fraction form
    1,874.52/2,586.92 = 1,078.10/x
  3. Step 3: Cross multiply
    1,874.52x = 2,586.92 × 1,078.10
  4. Step 4: Simplify right side
    1,874.52x = 2,788,970.85
  5. Step 5: Solve for x
    x = 2,788,970.85/1,874.52
  6. Step 6: Final answer
    x = 1,487.83

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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.