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Finding the Fourth Proportional to 1,630.60, 2,250.48 and 1,560.53

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Solution

The fourth proportional to 1,630.60, 2,250.48 and 1,560.53 is: 2,153.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630.60 : 2,250.48 = 1,560.53 : x
  2. Step 2: Convert to fraction form
    1,630.60/2,250.48 = 1,560.53/x
  3. Step 3: Cross multiply
    1,630.60x = 2,250.48 × 1,560.53
  4. Step 4: Simplify right side
    1,630.60x = 3,511,953.03
  5. Step 5: Solve for x
    x = 3,511,953.03/1,630.60
  6. Step 6: Final answer
    x = 2,153.78

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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.