Home / 5,280.81-7,923.97-3,831.92

Finding the Fourth Proportional to 5,280.81, 7,923.97 and 3,831.92

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Solution

The fourth proportional to 5,280.81, 7,923.97 and 3,831.92 is: 5,749.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.81 : 7,923.97 = 3,831.92 : x
  2. Step 2: Convert to fraction form
    5,280.81/7,923.97 = 3,831.92/x
  3. Step 3: Cross multiply
    5,280.81x = 7,923.97 × 3,831.92
  4. Step 4: Simplify right side
    5,280.81x = 30,364,019.12
  5. Step 5: Solve for x
    x = 30,364,019.12/5,280.81
  6. Step 6: Final answer
    x = 5,749.88

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1.5x scale

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.