Home / 1,562.23-2,344.28-831.81

Finding the Fourth Proportional to 1,562.23, 2,344.28 and 831.81

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Solution

The fourth proportional to 1,562.23, 2,344.28 and 831.81 is: 1,248.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,562.23 : 2,344.28 = 831.81 : x
  2. Step 2: Convert to fraction form
    1,562.23/2,344.28 = 831.81/x
  3. Step 3: Cross multiply
    1,562.23x = 2,344.28 × 831.81
  4. Step 4: Simplify right side
    1,562.23x = 1,950,000.18
  5. Step 5: Solve for x
    x = 1,950,000.18/1,562.23
  6. Step 6: Final answer
    x = 1,248.21

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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.