Home / 3,247.80-4,857.30-2,729.40

Finding the Fourth Proportional to 3,247.80, 4,857.30 and 2,729.40

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Solution

The fourth proportional to 3,247.80, 4,857.30 and 2,729.40 is: 4,082.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,247.80 : 4,857.30 = 2,729.40 : x
  2. Step 2: Convert to fraction form
    3,247.80/4,857.30 = 2,729.40/x
  3. Step 3: Cross multiply
    3,247.80x = 4,857.30 × 2,729.40
  4. Step 4: Simplify right side
    3,247.80x = 13,257,514.62
  5. Step 5: Solve for x
    x = 13,257,514.62/3,247.80
  6. Step 6: Final answer
    x = 4,082.00

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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.