Home / 5,220.56-7,831.20-3,153.92

Finding the Fourth Proportional to 5,220.56, 7,831.20 and 3,153.92

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Solution

The fourth proportional to 5,220.56, 7,831.20 and 3,153.92 is: 4,731.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.56 : 7,831.20 = 3,153.92 : x
  2. Step 2: Convert to fraction form
    5,220.56/7,831.20 = 3,153.92/x
  3. Step 3: Cross multiply
    5,220.56x = 7,831.20 × 3,153.92
  4. Step 4: Simplify right side
    5,220.56x = 24,698,978.30
  5. Step 5: Solve for x
    x = 24,698,978.30/5,220.56
  6. Step 6: Final answer
    x = 4,731.10

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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.