Home / 4,084.38-5,638.77-2,689.56

Finding the Fourth Proportional to 4,084.38, 5,638.77 and 2,689.56

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Solution

The fourth proportional to 4,084.38, 5,638.77 and 2,689.56 is: 3,713.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,084.38 : 5,638.77 = 2,689.56 : x
  2. Step 2: Convert to fraction form
    4,084.38/5,638.77 = 2,689.56/x
  3. Step 3: Cross multiply
    4,084.38x = 5,638.77 × 2,689.56
  4. Step 4: Simplify right side
    4,084.38x = 15,165,810.24
  5. Step 5: Solve for x
    x = 15,165,810.24/4,084.38
  6. Step 6: Final answer
    x = 3,713.12

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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.