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Finding the Fourth Proportional to 2,876.87, 4,306.03 and 1,488.30

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Solution

The fourth proportional to 2,876.87, 4,306.03 and 1,488.30 is: 2,227.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,876.87 : 4,306.03 = 1,488.30 : x
  2. Step 2: Convert to fraction form
    2,876.87/4,306.03 = 1,488.30/x
  3. Step 3: Cross multiply
    2,876.87x = 4,306.03 × 1,488.30
  4. Step 4: Simplify right side
    2,876.87x = 6,408,644.58
  5. Step 5: Solve for x
    x = 6,408,644.58/2,876.87
  6. Step 6: Final answer
    x = 2,227.64

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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.