Home / 5,280.12-7,922.94-3,831.24

Finding the Fourth Proportional to 5,280.12, 7,922.94 and 3,831.24

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Solution

The fourth proportional to 5,280.12, 7,922.94 and 3,831.24 is: 5,748.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.12 : 7,922.94 = 3,831.24 : x
  2. Step 2: Convert to fraction form
    5,280.12/7,922.94 = 3,831.24/x
  3. Step 3: Cross multiply
    5,280.12x = 7,922.94 × 3,831.24
  4. Step 4: Simplify right side
    5,280.12x = 30,354,640.57
  5. Step 5: Solve for x
    x = 30,354,640.57/5,280.12
  6. Step 6: Final answer
    x = 5,748.85

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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.