Home / 3,902.72-5,382.24-2,577.75

Finding the Fourth Proportional to 3,902.72, 5,382.24 and 2,577.75

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Solution

The fourth proportional to 3,902.72, 5,382.24 and 2,577.75 is: 3,554.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.72 : 5,382.24 = 2,577.75 : x
  2. Step 2: Convert to fraction form
    3,902.72/5,382.24 = 2,577.75/x
  3. Step 3: Cross multiply
    3,902.72x = 5,382.24 × 2,577.75
  4. Step 4: Simplify right side
    3,902.72x = 13,874,069.16
  5. Step 5: Solve for x
    x = 13,874,069.16/3,902.72
  6. Step 6: Final answer
    x = 3,554.98

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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.