Home / 5,256.12-7,884.18-2,177.88

Finding the Fourth Proportional to 5,256.12, 7,884.18 and 2,177.88

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Solution

The fourth proportional to 5,256.12, 7,884.18 and 2,177.88 is: 3,266.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,256.12 : 7,884.18 = 2,177.88 : x
  2. Step 2: Convert to fraction form
    5,256.12/7,884.18 = 2,177.88/x
  3. Step 3: Cross multiply
    5,256.12x = 7,884.18 × 2,177.88
  4. Step 4: Simplify right side
    5,256.12x = 17,170,797.94
  5. Step 5: Solve for x
    x = 17,170,797.94/5,256.12
  6. Step 6: Final answer
    x = 3,266.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.