Home / 2,301.20-3,175.68-1,253.26

Finding the Fourth Proportional to 2,301.20, 3,175.68 and 1,253.26

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Solution

The fourth proportional to 2,301.20, 3,175.68 and 1,253.26 is: 1,729.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,301.20 : 3,175.68 = 1,253.26 : x
  2. Step 2: Convert to fraction form
    2,301.20/3,175.68 = 1,253.26/x
  3. Step 3: Cross multiply
    2,301.20x = 3,175.68 × 1,253.26
  4. Step 4: Simplify right side
    2,301.20x = 3,979,952.72
  5. Step 5: Solve for x
    x = 3,979,952.72/2,301.20
  6. Step 6: Final answer
    x = 1,729.51

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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.