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Finding the Fourth Proportional to 3,372.80, 4,654.31 and 1,880.88

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Solution

The fourth proportional to 3,372.80, 4,654.31 and 1,880.88 is: 2,595.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,372.80 : 4,654.31 = 1,880.88 : x
  2. Step 2: Convert to fraction form
    3,372.80/4,654.31 = 1,880.88/x
  3. Step 3: Cross multiply
    3,372.80x = 4,654.31 × 1,880.88
  4. Step 4: Simplify right side
    3,372.80x = 8,754,198.59
  5. Step 5: Solve for x
    x = 8,754,198.59/3,372.80
  6. Step 6: Final answer
    x = 2,595.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.