Home / 1,327.68-1,831.04-1,065.60

Finding the Fourth Proportional to 1,327.68, 1,831.04 and 1,065.60

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Solution

The fourth proportional to 1,327.68, 1,831.04 and 1,065.60 is: 1,469.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327.68 : 1,831.04 = 1,065.60 : x
  2. Step 2: Convert to fraction form
    1,327.68/1,831.04 = 1,065.60/x
  3. Step 3: Cross multiply
    1,327.68x = 1,831.04 × 1,065.60
  4. Step 4: Simplify right side
    1,327.68x = 1,951,156.22
  5. Step 5: Solve for x
    x = 1,951,156.22/1,327.68
  6. Step 6: Final answer
    x = 1,469.60

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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.