Home / 2,240.85-3,092.43-1,246.23

Finding the Fourth Proportional to 2,240.85, 3,092.43 and 1,246.23

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Solution

The fourth proportional to 2,240.85, 3,092.43 and 1,246.23 is: 1,719.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240.85 : 3,092.43 = 1,246.23 : x
  2. Step 2: Convert to fraction form
    2,240.85/3,092.43 = 1,246.23/x
  3. Step 3: Cross multiply
    2,240.85x = 3,092.43 × 1,246.23
  4. Step 4: Simplify right side
    2,240.85x = 3,853,883.71
  5. Step 5: Solve for x
    x = 3,853,883.71/2,240.85
  6. Step 6: Final answer
    x = 1,719.83

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Double scale
Find fourth proportional to 2,241.85, 3,093.81 and 1,247.23
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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.