Home / 2,197.20-3,032.21-1,253.13

Finding the Fourth Proportional to 2,197.20, 3,032.21 and 1,253.13

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Solution

The fourth proportional to 2,197.20, 3,032.21 and 1,253.13 is: 1,729.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.20 : 3,032.21 = 1,253.13 : x
  2. Step 2: Convert to fraction form
    2,197.20/3,032.21 = 1,253.13/x
  3. Step 3: Cross multiply
    2,197.20x = 3,032.21 × 1,253.13
  4. Step 4: Simplify right side
    2,197.20x = 3,799,751.75
  5. Step 5: Solve for x
    x = 3,799,751.75/2,197.20
  6. Step 6: Final answer
    x = 1,729.36

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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.