Home / 1,481.29-2,220.55-740.44

Finding the Fourth Proportional to 1,481.29, 2,220.55 and 740.44

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Solution

The fourth proportional to 1,481.29, 2,220.55 and 740.44 is: 1,109.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,481.29 : 2,220.55 = 740.44 : x
  2. Step 2: Convert to fraction form
    1,481.29/2,220.55 = 740.44/x
  3. Step 3: Cross multiply
    1,481.29x = 2,220.55 × 740.44
  4. Step 4: Simplify right side
    1,481.29x = 1,644,184.97
  5. Step 5: Solve for x
    x = 1,644,184.97/1,481.29
  6. Step 6: Final answer
    x = 1,109.97

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Half scale
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Double scale
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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.