Home / 3,047.20-4,207.08-2,489.02

Finding the Fourth Proportional to 3,047.20, 4,207.08 and 2,489.02

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Solution

The fourth proportional to 3,047.20, 4,207.08 and 2,489.02 is: 3,436.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,047.20 : 4,207.08 = 2,489.02 : x
  2. Step 2: Convert to fraction form
    3,047.20/4,207.08 = 2,489.02/x
  3. Step 3: Cross multiply
    3,047.20x = 4,207.08 × 2,489.02
  4. Step 4: Simplify right side
    3,047.20x = 10,471,506.26
  5. Step 5: Solve for x
    x = 10,471,506.26/3,047.20
  6. Step 6: Final answer
    x = 3,436.44

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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.