Home / 4,147.20-5,723.28-2,378.88

Finding the Fourth Proportional to 4,147.20, 5,723.28 and 2,378.88

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Solution

The fourth proportional to 4,147.20, 5,723.28 and 2,378.88 is: 3,282.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,147.20 : 5,723.28 = 2,378.88 : x
  2. Step 2: Convert to fraction form
    4,147.20/5,723.28 = 2,378.88/x
  3. Step 3: Cross multiply
    4,147.20x = 5,723.28 × 2,378.88
  4. Step 4: Simplify right side
    4,147.20x = 13,614,996.33
  5. Step 5: Solve for x
    x = 13,614,996.33/4,147.20
  6. Step 6: Final answer
    x = 3,282.94

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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.