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Finding the Fourth Proportional to 2,876.60, 4,314.90 and 1,027.70

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Solution

The fourth proportional to 2,876.60, 4,314.90 and 1,027.70 is: 1,541.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,876.60 : 4,314.90 = 1,027.70 : x
  2. Step 2: Convert to fraction form
    2,876.60/4,314.90 = 1,027.70/x
  3. Step 3: Cross multiply
    2,876.60x = 4,314.90 × 1,027.70
  4. Step 4: Simplify right side
    2,876.60x = 4,434,422.73
  5. Step 5: Solve for x
    x = 4,434,422.73/2,876.60
  6. Step 6: Final answer
    x = 1,541.55

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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.