Home / 1,286.17-1,929.22-737.95

Finding the Fourth Proportional to 1,286.17, 1,929.22 and 737.95

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Solution

The fourth proportional to 1,286.17, 1,929.22 and 737.95 is: 1,106.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286.17 : 1,929.22 = 737.95 : x
  2. Step 2: Convert to fraction form
    1,286.17/1,929.22 = 737.95/x
  3. Step 3: Cross multiply
    1,286.17x = 1,929.22 × 737.95
  4. Step 4: Simplify right side
    1,286.17x = 1,423,667.90
  5. Step 5: Solve for x
    x = 1,423,667.90/1,286.17
  6. Step 6: Final answer
    x = 1,106.90

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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.