Home / 2,020.66-2,789.19-1,234.75

Finding the Fourth Proportional to 2,020.66, 2,789.19 and 1,234.75

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Solution

The fourth proportional to 2,020.66, 2,789.19 and 1,234.75 is: 1,704.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020.66 : 2,789.19 = 1,234.75 : x
  2. Step 2: Convert to fraction form
    2,020.66/2,789.19 = 1,234.75/x
  3. Step 3: Cross multiply
    2,020.66x = 2,789.19 × 1,234.75
  4. Step 4: Simplify right side
    2,020.66x = 3,443,952.35
  5. Step 5: Solve for x
    x = 3,443,952.35/2,020.66
  6. Step 6: Final answer
    x = 1,704.37

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.