Home / 2,197.71-3,031.92-1,358.19

Finding the Fourth Proportional to 2,197.71, 3,031.92 and 1,358.19

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Solution

The fourth proportional to 2,197.71, 3,031.92 and 1,358.19 is: 1,873.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.71 : 3,031.92 = 1,358.19 : x
  2. Step 2: Convert to fraction form
    2,197.71/3,031.92 = 1,358.19/x
  3. Step 3: Cross multiply
    2,197.71x = 3,031.92 × 1,358.19
  4. Step 4: Simplify right side
    2,197.71x = 4,117,923.42
  5. Step 5: Solve for x
    x = 4,117,923.42/2,197.71
  6. Step 6: Final answer
    x = 1,873.73

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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.