Home / 3,630.72-5,010.19-2,015.55

Finding the Fourth Proportional to 3,630.72, 5,010.19 and 2,015.55

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Solution

The fourth proportional to 3,630.72, 5,010.19 and 2,015.55 is: 2,781.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.72 : 5,010.19 = 2,015.55 : x
  2. Step 2: Convert to fraction form
    3,630.72/5,010.19 = 2,015.55/x
  3. Step 3: Cross multiply
    3,630.72x = 5,010.19 × 2,015.55
  4. Step 4: Simplify right side
    3,630.72x = 10,098,288.45
  5. Step 5: Solve for x
    x = 10,098,288.45/3,630.72
  6. Step 6: Final answer
    x = 2,781.35

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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.