Home / 3,040.75-4,194.81-1,781.02

Finding the Fourth Proportional to 3,040.75, 4,194.81 and 1,781.02

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Solution

The fourth proportional to 3,040.75, 4,194.81 and 1,781.02 is: 2,456.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,040.75 : 4,194.81 = 1,781.02 : x
  2. Step 2: Convert to fraction form
    3,040.75/4,194.81 = 1,781.02/x
  3. Step 3: Cross multiply
    3,040.75x = 4,194.81 × 1,781.02
  4. Step 4: Simplify right side
    3,040.75x = 7,471,040.51
  5. Step 5: Solve for x
    x = 7,471,040.51/3,040.75
  6. Step 6: Final answer
    x = 2,456.97

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