Home / 2,197.08-3,031.81-1,202.15

Finding the Fourth Proportional to 2,197.08, 3,031.81 and 1,202.15

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Solution

The fourth proportional to 2,197.08, 3,031.81 and 1,202.15 is: 1,658.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.08 : 3,031.81 = 1,202.15 : x
  2. Step 2: Convert to fraction form
    2,197.08/3,031.81 = 1,202.15/x
  3. Step 3: Cross multiply
    2,197.08x = 3,031.81 × 1,202.15
  4. Step 4: Simplify right side
    2,197.08x = 3,644,694.97
  5. Step 5: Solve for x
    x = 3,644,694.97/2,197.08
  6. Step 6: Final answer
    x = 1,658.88

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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.