Home / 5,164.47-7,126.94-2,806.61

Finding the Fourth Proportional to 5,164.47, 7,126.94 and 2,806.61

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Solution

The fourth proportional to 5,164.47, 7,126.94 and 2,806.61 is: 3,873.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,164.47 : 7,126.94 = 2,806.61 : x
  2. Step 2: Convert to fraction form
    5,164.47/7,126.94 = 2,806.61/x
  3. Step 3: Cross multiply
    5,164.47x = 7,126.94 × 2,806.61
  4. Step 4: Simplify right side
    5,164.47x = 20,002,512.46
  5. Step 5: Solve for x
    x = 20,002,512.46/5,164.47
  6. Step 6: Final answer
    x = 3,873.10

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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.