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Finding the Fourth Proportional to 2,761.60, 4,137.60 and 2,377.60

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Solution

The fourth proportional to 2,761.60, 4,137.60 and 2,377.60 is: 3,562.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.60 : 4,137.60 = 2,377.60 : x
  2. Step 2: Convert to fraction form
    2,761.60/4,137.60 = 2,377.60/x
  3. Step 3: Cross multiply
    2,761.60x = 4,137.60 × 2,377.60
  4. Step 4: Simplify right side
    2,761.60x = 9,837,557.76
  5. Step 5: Solve for x
    x = 9,837,557.76/2,761.60
  6. Step 6: Final answer
    x = 3,562.27

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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.