Home / 3,937.38-5,433.56-2,168.99

Finding the Fourth Proportional to 3,937.38, 5,433.56 and 2,168.99

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Solution

The fourth proportional to 3,937.38, 5,433.56 and 2,168.99 is: 2,993.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.38 : 5,433.56 = 2,168.99 : x
  2. Step 2: Convert to fraction form
    3,937.38/5,433.56 = 2,168.99/x
  3. Step 3: Cross multiply
    3,937.38x = 5,433.56 × 2,168.99
  4. Step 4: Simplify right side
    3,937.38x = 11,785,370.57
  5. Step 5: Solve for x
    x = 11,785,370.57/3,937.38
  6. Step 6: Final answer
    x = 2,993.20

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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.