Home / 3,122.56-4,680.08-1,146.60

Finding the Fourth Proportional to 3,122.56, 4,680.08 and 1,146.60

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Solution

The fourth proportional to 3,122.56, 4,680.08 and 1,146.60 is: 1,718.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.56 : 4,680.08 = 1,146.60 : x
  2. Step 2: Convert to fraction form
    3,122.56/4,680.08 = 1,146.60/x
  3. Step 3: Cross multiply
    3,122.56x = 4,680.08 × 1,146.60
  4. Step 4: Simplify right side
    3,122.56x = 5,366,179.73
  5. Step 5: Solve for x
    x = 5,366,179.73/3,122.56
  6. Step 6: Final answer
    x = 1,718.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.