Home / 1,397.26-2,091.28-1,348.06

Finding the Fourth Proportional to 1,397.26, 2,091.28 and 1,348.06

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Solution

The fourth proportional to 1,397.26, 2,091.28 and 1,348.06 is: 2,017.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397.26 : 2,091.28 = 1,348.06 : x
  2. Step 2: Convert to fraction form
    1,397.26/2,091.28 = 1,348.06/x
  3. Step 3: Cross multiply
    1,397.26x = 2,091.28 × 1,348.06
  4. Step 4: Simplify right side
    1,397.26x = 2,819,170.92
  5. Step 5: Solve for x
    x = 2,819,170.92/1,397.26
  6. Step 6: Final answer
    x = 2,017.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.