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Finding the Fourth Proportional to 3,630.56, 5,010.12 and 1,974.56

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Solution

The fourth proportional to 3,630.56, 5,010.12 and 1,974.56 is: 2,724.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.56 : 5,010.12 = 1,974.56 : x
  2. Step 2: Convert to fraction form
    3,630.56/5,010.12 = 1,974.56/x
  3. Step 3: Cross multiply
    3,630.56x = 5,010.12 × 1,974.56
  4. Step 4: Simplify right side
    3,630.56x = 9,892,782.55
  5. Step 5: Solve for x
    x = 9,892,782.55/3,630.56
  6. Step 6: Final answer
    x = 2,724.86

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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.