Home / 2,197.27-3,031.76-1,252.80

Finding the Fourth Proportional to 2,197.27, 3,031.76 and 1,252.80

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Solution

The fourth proportional to 2,197.27, 3,031.76 and 1,252.80 is: 1,728.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.27 : 3,031.76 = 1,252.80 : x
  2. Step 2: Convert to fraction form
    2,197.27/3,031.76 = 1,252.80/x
  3. Step 3: Cross multiply
    2,197.27x = 3,031.76 × 1,252.80
  4. Step 4: Simplify right side
    2,197.27x = 3,798,192.06
  5. Step 5: Solve for x
    x = 3,798,192.06/2,197.27
  6. Step 6: Final answer
    x = 1,728.59

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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.