Home / 2,342.42-3,232.57-1,280.20

Finding the Fourth Proportional to 2,342.42, 3,232.57 and 1,280.20

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Solution

The fourth proportional to 2,342.42, 3,232.57 and 1,280.20 is: 1,766.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,342.42 : 3,232.57 = 1,280.20 : x
  2. Step 2: Convert to fraction form
    2,342.42/3,232.57 = 1,280.20/x
  3. Step 3: Cross multiply
    2,342.42x = 3,232.57 × 1,280.20
  4. Step 4: Simplify right side
    2,342.42x = 4,138,324.83
  5. Step 5: Solve for x
    x = 4,138,324.83/2,342.42
  6. Step 6: Final answer
    x = 1,766.69

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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.