Home / 2,280.89-3,147.63-1,232.96

Finding the Fourth Proportional to 2,280.89, 3,147.63 and 1,232.96

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Solution

The fourth proportional to 2,280.89, 3,147.63 and 1,232.96 is: 1,701.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280.89 : 3,147.63 = 1,232.96 : x
  2. Step 2: Convert to fraction form
    2,280.89/3,147.63 = 1,232.96/x
  3. Step 3: Cross multiply
    2,280.89x = 3,147.63 × 1,232.96
  4. Step 4: Simplify right side
    2,280.89x = 3,880,891.93
  5. Step 5: Solve for x
    x = 3,880,891.93/2,280.89
  6. Step 6: Final answer
    x = 1,701.48

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Half scale
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Double scale
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Similar ratio
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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.