Home / 2,301.38-3,175.91-1,253.45

Finding the Fourth Proportional to 2,301.38, 3,175.91 and 1,253.45

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Solution

The fourth proportional to 2,301.38, 3,175.91 and 1,253.45 is: 1,729.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,301.38 : 3,175.91 = 1,253.45 : x
  2. Step 2: Convert to fraction form
    2,301.38/3,175.91 = 1,253.45/x
  3. Step 3: Cross multiply
    2,301.38x = 3,175.91 × 1,253.45
  4. Step 4: Simplify right side
    2,301.38x = 3,980,822.24
  5. Step 5: Solve for x
    x = 3,980,822.24/2,301.38
  6. Step 6: Final answer
    x = 1,729.76

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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.