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Finding the Fourth Proportional to 1,753.45, 2,419.77 and 967.55

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Solution

The fourth proportional to 1,753.45, 2,419.77 and 967.55 is: 1,335.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,753.45 : 2,419.77 = 967.55 : x
  2. Step 2: Convert to fraction form
    1,753.45/2,419.77 = 967.55/x
  3. Step 3: Cross multiply
    1,753.45x = 2,419.77 × 967.55
  4. Step 4: Simplify right side
    1,753.45x = 2,341,248.16
  5. Step 5: Solve for x
    x = 2,341,248.16/1,753.45
  6. Step 6: Final answer
    x = 1,335.22

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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.