Home / 1,327.20-1,831.53-737.70

Finding the Fourth Proportional to 1,327.20, 1,831.53 and 737.70

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Solution

The fourth proportional to 1,327.20, 1,831.53 and 737.70 is: 1,018.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327.20 : 1,831.53 = 737.70 : x
  2. Step 2: Convert to fraction form
    1,327.20/1,831.53 = 737.70/x
  3. Step 3: Cross multiply
    1,327.20x = 1,831.53 × 737.70
  4. Step 4: Simplify right side
    1,327.20x = 1,351,119.68
  5. Step 5: Solve for x
    x = 1,351,119.68/1,327.20
  6. Step 6: Final answer
    x = 1,018.02

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1.5x scale

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.