Home / 3,354.31-5,031.47-2,199.79

Finding the Fourth Proportional to 3,354.31, 5,031.47 and 2,199.79

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Solution

The fourth proportional to 3,354.31, 5,031.47 and 2,199.79 is: 3,299.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,354.31 : 5,031.47 = 2,199.79 : x
  2. Step 2: Convert to fraction form
    3,354.31/5,031.47 = 2,199.79/x
  3. Step 3: Cross multiply
    3,354.31x = 5,031.47 × 2,199.79
  4. Step 4: Simplify right side
    3,354.31x = 11,068,177.39
  5. Step 5: Solve for x
    x = 11,068,177.39/3,354.31
  6. Step 6: Final answer
    x = 3,299.69

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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.