Home / 4,761.82-7,142.76-1,299.07

Finding the Fourth Proportional to 4,761.82, 7,142.76 and 1,299.07

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Solution

The fourth proportional to 4,761.82, 7,142.76 and 1,299.07 is: 1,948.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,761.82 : 7,142.76 = 1,299.07 : x
  2. Step 2: Convert to fraction form
    4,761.82/7,142.76 = 1,299.07/x
  3. Step 3: Cross multiply
    4,761.82x = 7,142.76 × 1,299.07
  4. Step 4: Simplify right side
    4,761.82x = 9,278,945.23
  5. Step 5: Solve for x
    x = 9,278,945.23/4,761.82
  6. Step 6: Final answer
    x = 1,948.61

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Half scale
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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.