Home / 5,220.28-7,204.32-3,448.78

Finding the Fourth Proportional to 5,220.28, 7,204.32 and 3,448.78

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Solution

The fourth proportional to 5,220.28, 7,204.32 and 3,448.78 is: 4,759.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.28 : 7,204.32 = 3,448.78 : x
  2. Step 2: Convert to fraction form
    5,220.28/7,204.32 = 3,448.78/x
  3. Step 3: Cross multiply
    5,220.28x = 7,204.32 × 3,448.78
  4. Step 4: Simplify right side
    5,220.28x = 24,846,114.73
  5. Step 5: Solve for x
    x = 24,846,114.73/5,220.28
  6. Step 6: Final answer
    x = 4,759.54

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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.