Home / 2,280.84-3,147.56-1,232.90

Finding the Fourth Proportional to 2,280.84, 3,147.56 and 1,232.90

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Solution

The fourth proportional to 2,280.84, 3,147.56 and 1,232.90 is: 1,701.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280.84 : 3,147.56 = 1,232.90 : x
  2. Step 2: Convert to fraction form
    2,280.84/3,147.56 = 1,232.90/x
  3. Step 3: Cross multiply
    2,280.84x = 3,147.56 × 1,232.90
  4. Step 4: Simplify right side
    2,280.84x = 3,880,628.43
  5. Step 5: Solve for x
    x = 3,880,628.43/2,280.84
  6. Step 6: Final answer
    x = 1,701.40

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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.