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Finding the Fourth Proportional to 5,540.72, 7,643.72 and 3,301.44

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Solution

The fourth proportional to 5,540.72, 7,643.72 and 3,301.44 is: 4,554.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,540.72 : 7,643.72 = 3,301.44 : x
  2. Step 2: Convert to fraction form
    5,540.72/7,643.72 = 3,301.44/x
  3. Step 3: Cross multiply
    5,540.72x = 7,643.72 × 3,301.44
  4. Step 4: Simplify right side
    5,540.72x = 25,235,282.96
  5. Step 5: Solve for x
    x = 25,235,282.96/5,540.72
  6. Step 6: Final answer
    x = 4,554.51

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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.