Home / 5,164.43-7,126.90-2,806.57

Finding the Fourth Proportional to 5,164.43, 7,126.90 and 2,806.57

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Solution

The fourth proportional to 5,164.43, 7,126.90 and 2,806.57 is: 3,873.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,164.43 : 7,126.90 = 2,806.57 : x
  2. Step 2: Convert to fraction form
    5,164.43/7,126.90 = 2,806.57/x
  3. Step 3: Cross multiply
    5,164.43x = 7,126.90 × 2,806.57
  4. Step 4: Simplify right side
    5,164.43x = 20,002,143.73
  5. Step 5: Solve for x
    x = 20,002,143.73/5,164.43
  6. Step 6: Final answer
    x = 3,873.06

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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.