Home / 3,872.08-5,345.76-2,548

Finding the Fourth Proportional to 3,872.08, 5,345.76 and 2,548

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Solution

The fourth proportional to 3,872.08, 5,345.76 and 2,548 is: 3,517.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.08 : 5,345.76 = 2,548 : x
  2. Step 2: Convert to fraction form
    3,872.08/5,345.76 = 2,548/x
  3. Step 3: Cross multiply
    3,872.08x = 5,345.76 × 2,548
  4. Step 4: Simplify right side
    3,872.08x = 13,620,996.48
  5. Step 5: Solve for x
    x = 13,620,996.48/3,872.08
  6. Step 6: Final answer
    x = 3,517.75

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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.