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Finding the Fourth Proportional to 1,493.66, 2,062.18 and 962.78

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Solution

The fourth proportional to 1,493.66, 2,062.18 and 962.78 is: 1,329.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,493.66 : 2,062.18 = 962.78 : x
  2. Step 2: Convert to fraction form
    1,493.66/2,062.18 = 962.78/x
  3. Step 3: Cross multiply
    1,493.66x = 2,062.18 × 962.78
  4. Step 4: Simplify right side
    1,493.66x = 1,985,425.66
  5. Step 5: Solve for x
    x = 1,985,425.66/1,493.66
  6. Step 6: Final answer
    x = 1,329.24

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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.