Home / 1,251.45-1,874.75-1,077.10

Finding the Fourth Proportional to 1,251.45, 1,874.75 and 1,077.10

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Solution

The fourth proportional to 1,251.45, 1,874.75 and 1,077.10 is: 1,613.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251.45 : 1,874.75 = 1,077.10 : x
  2. Step 2: Convert to fraction form
    1,251.45/1,874.75 = 1,077.10/x
  3. Step 3: Cross multiply
    1,251.45x = 1,874.75 × 1,077.10
  4. Step 4: Simplify right side
    1,251.45x = 2,019,283.15
  5. Step 5: Solve for x
    x = 2,019,283.15/1,251.45
  6. Step 6: Final answer
    x = 1,613.55

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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.