Home / 1,229.76-1,844.65-1,012.89

Finding the Fourth Proportional to 1,229.76, 1,844.65 and 1,012.89

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Solution

The fourth proportional to 1,229.76, 1,844.65 and 1,012.89 is: 1,519.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229.76 : 1,844.65 = 1,012.89 : x
  2. Step 2: Convert to fraction form
    1,229.76/1,844.65 = 1,012.89/x
  3. Step 3: Cross multiply
    1,229.76x = 1,844.65 × 1,012.89
  4. Step 4: Simplify right side
    1,229.76x = 1,868,427.54
  5. Step 5: Solve for x
    x = 1,868,427.54/1,229.76
  6. Step 6: Final answer
    x = 1,519.34

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Double scale
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Similar ratio
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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.