Home / 3,040.30-4,191.55-2,280.85

Finding the Fourth Proportional to 3,040.30, 4,191.55 and 2,280.85

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Solution

The fourth proportional to 3,040.30, 4,191.55 and 2,280.85 is: 3,144.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,040.30 : 4,191.55 = 2,280.85 : x
  2. Step 2: Convert to fraction form
    3,040.30/4,191.55 = 2,280.85/x
  3. Step 3: Cross multiply
    3,040.30x = 4,191.55 × 2,280.85
  4. Step 4: Simplify right side
    3,040.30x = 9,560,296.82
  5. Step 5: Solve for x
    x = 9,560,296.82/3,040.30
  6. Step 6: Final answer
    x = 3,144.52

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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.