Home / 1,306.22-1,959.35-1,230.12

Finding the Fourth Proportional to 1,306.22, 1,959.35 and 1,230.12

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Solution

The fourth proportional to 1,306.22, 1,959.35 and 1,230.12 is: 1,845.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306.22 : 1,959.35 = 1,230.12 : x
  2. Step 2: Convert to fraction form
    1,306.22/1,959.35 = 1,230.12/x
  3. Step 3: Cross multiply
    1,306.22x = 1,959.35 × 1,230.12
  4. Step 4: Simplify right side
    1,306.22x = 2,410,229.47
  5. Step 5: Solve for x
    x = 2,410,229.47/1,306.22
  6. Step 6: Final answer
    x = 1,845.20

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1.5x scale

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.