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Finding the Fourth Proportional to 3,338.76, 5,006.77 and 1,488.61

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Solution

The fourth proportional to 3,338.76, 5,006.77 and 1,488.61 is: 2,232.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,338.76 : 5,006.77 = 1,488.61 : x
  2. Step 2: Convert to fraction form
    3,338.76/5,006.77 = 1,488.61/x
  3. Step 3: Cross multiply
    3,338.76x = 5,006.77 × 1,488.61
  4. Step 4: Simplify right side
    3,338.76x = 7,453,129.41
  5. Step 5: Solve for x
    x = 7,453,129.41/3,338.76
  6. Step 6: Final answer
    x = 2,232.30

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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.