Home / 5,257.60-7,255.84-3,020.20

Finding the Fourth Proportional to 5,257.60, 7,255.84 and 3,020.20

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Solution

The fourth proportional to 5,257.60, 7,255.84 and 3,020.20 is: 4,168.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,257.60 : 7,255.84 = 3,020.20 : x
  2. Step 2: Convert to fraction form
    5,257.60/7,255.84 = 3,020.20/x
  3. Step 3: Cross multiply
    5,257.60x = 7,255.84 × 3,020.20
  4. Step 4: Simplify right side
    5,257.60x = 21,914,087.97
  5. Step 5: Solve for x
    x = 21,914,087.97/5,257.60
  6. Step 6: Final answer
    x = 4,168.08

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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.