Home / 1,494.91-2,062.83-831.70

Finding the Fourth Proportional to 1,494.91, 2,062.83 and 831.70

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Solution

The fourth proportional to 1,494.91, 2,062.83 and 831.70 is: 1,147.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,494.91 : 2,062.83 = 831.70 : x
  2. Step 2: Convert to fraction form
    1,494.91/2,062.83 = 831.70/x
  3. Step 3: Cross multiply
    1,494.91x = 2,062.83 × 831.70
  4. Step 4: Simplify right side
    1,494.91x = 1,715,655.71
  5. Step 5: Solve for x
    x = 1,715,655.71/1,494.91
  6. Step 6: Final answer
    x = 1,147.66

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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.