Home / 1,383.12-2,062.62-1,306.44

Finding the Fourth Proportional to 1,383.12, 2,062.62 and 1,306.44

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Solution

The fourth proportional to 1,383.12, 2,062.62 and 1,306.44 is: 1,948.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383.12 : 2,062.62 = 1,306.44 : x
  2. Step 2: Convert to fraction form
    1,383.12/2,062.62 = 1,306.44/x
  3. Step 3: Cross multiply
    1,383.12x = 2,062.62 × 1,306.44
  4. Step 4: Simplify right side
    1,383.12x = 2,694,689.27
  5. Step 5: Solve for x
    x = 2,694,689.27/1,383.12
  6. Step 6: Final answer
    x = 1,948.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.