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Finding the Fourth Proportional to 1,932.66, 2,897.55 and 959.45

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Solution

The fourth proportional to 1,932.66, 2,897.55 and 959.45 is: 1,438.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,932.66 : 2,897.55 = 959.45 : x
  2. Step 2: Convert to fraction form
    1,932.66/2,897.55 = 959.45/x
  3. Step 3: Cross multiply
    1,932.66x = 2,897.55 × 959.45
  4. Step 4: Simplify right side
    1,932.66x = 2,780,037.16
  5. Step 5: Solve for x
    x = 2,780,037.16/1,932.66
  6. Step 6: Final answer
    x = 1,438.45

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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.