Home / 1,327.05-1,831.37-737.55

Finding the Fourth Proportional to 1,327.05, 1,831.37 and 737.55

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Solution

The fourth proportional to 1,327.05, 1,831.37 and 737.55 is: 1,017.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327.05 : 1,831.37 = 737.55 : x
  2. Step 2: Convert to fraction form
    1,327.05/1,831.37 = 737.55/x
  3. Step 3: Cross multiply
    1,327.05x = 1,831.37 × 737.55
  4. Step 4: Simplify right side
    1,327.05x = 1,350,723.26
  5. Step 5: Solve for x
    x = 1,350,723.26/1,327.05
  6. Step 6: Final answer
    x = 1,017.84

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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.