Home / 3,638.91-5,016.61-3,077.12

Finding the Fourth Proportional to 3,638.91, 5,016.61 and 3,077.12

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Solution

The fourth proportional to 3,638.91, 5,016.61 and 3,077.12 is: 4,242.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.91 : 5,016.61 = 3,077.12 : x
  2. Step 2: Convert to fraction form
    3,638.91/5,016.61 = 3,077.12/x
  3. Step 3: Cross multiply
    3,638.91x = 5,016.61 × 3,077.12
  4. Step 4: Simplify right side
    3,638.91x = 15,436,718.70
  5. Step 5: Solve for x
    x = 15,436,718.70/3,638.91
  6. Step 6: Final answer
    x = 4,242.13

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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.