Home / 3,447.96-4,757.18-2,121.88

Finding the Fourth Proportional to 3,447.96, 4,757.18 and 2,121.88

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Solution

The fourth proportional to 3,447.96, 4,757.18 and 2,121.88 is: 2,927.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,447.96 : 4,757.18 = 2,121.88 : x
  2. Step 2: Convert to fraction form
    3,447.96/4,757.18 = 2,121.88/x
  3. Step 3: Cross multiply
    3,447.96x = 4,757.18 × 2,121.88
  4. Step 4: Simplify right side
    3,447.96x = 10,094,165.10
  5. Step 5: Solve for x
    x = 10,094,165.10/3,447.96
  6. Step 6: Final answer
    x = 2,927.58

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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.