Home / 5,280.20-7,923.03-3,831.31

Finding the Fourth Proportional to 5,280.20, 7,923.03 and 3,831.31

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Solution

The fourth proportional to 5,280.20, 7,923.03 and 3,831.31 is: 5,748.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.20 : 7,923.03 = 3,831.31 : x
  2. Step 2: Convert to fraction form
    5,280.20/7,923.03 = 3,831.31/x
  3. Step 3: Cross multiply
    5,280.20x = 7,923.03 × 3,831.31
  4. Step 4: Simplify right side
    5,280.20x = 30,355,584.07
  5. Step 5: Solve for x
    x = 30,355,584.07/5,280.20
  6. Step 6: Final answer
    x = 5,748.95

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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.