Home / 1,831.12-2,744.20-1,008.16

Finding the Fourth Proportional to 1,831.12, 2,744.20 and 1,008.16

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Solution

The fourth proportional to 1,831.12, 2,744.20 and 1,008.16 is: 1,510.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,831.12 : 2,744.20 = 1,008.16 : x
  2. Step 2: Convert to fraction form
    1,831.12/2,744.20 = 1,008.16/x
  3. Step 3: Cross multiply
    1,831.12x = 2,744.20 × 1,008.16
  4. Step 4: Simplify right side
    1,831.12x = 2,766,592.67
  5. Step 5: Solve for x
    x = 2,766,592.67/1,831.12
  6. Step 6: Final answer
    x = 1,510.87

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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.