Home / 1,217.68-1,691.91-1,204.83

Finding the Fourth Proportional to 1,217.68, 1,691.91 and 1,204.83

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Solution

The fourth proportional to 1,217.68, 1,691.91 and 1,204.83 is: 1,674.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217.68 : 1,691.91 = 1,204.83 : x
  2. Step 2: Convert to fraction form
    1,217.68/1,691.91 = 1,204.83/x
  3. Step 3: Cross multiply
    1,217.68x = 1,691.91 × 1,204.83
  4. Step 4: Simplify right side
    1,217.68x = 2,038,463.93
  5. Step 5: Solve for x
    x = 2,038,463.93/1,217.68
  6. Step 6: Final answer
    x = 1,674.06

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.