Home / 3,540.78-5,312.07-2,081.16

Finding the Fourth Proportional to 3,540.78, 5,312.07 and 2,081.16

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Solution

The fourth proportional to 3,540.78, 5,312.07 and 2,081.16 is: 3,122.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.78 : 5,312.07 = 2,081.16 : x
  2. Step 2: Convert to fraction form
    3,540.78/5,312.07 = 2,081.16/x
  3. Step 3: Cross multiply
    3,540.78x = 5,312.07 × 2,081.16
  4. Step 4: Simplify right side
    3,540.78x = 11,055,267.60
  5. Step 5: Solve for x
    x = 11,055,267.60/3,540.78
  6. Step 6: Final answer
    x = 3,122.27

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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.