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Finding the Fourth Proportional to 3,530.88, 4,874 and 2,575.20

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Solution

The fourth proportional to 3,530.88, 4,874 and 2,575.20 is: 3,554.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,530.88 : 4,874 = 2,575.20 : x
  2. Step 2: Convert to fraction form
    3,530.88/4,874 = 2,575.20/x
  3. Step 3: Cross multiply
    3,530.88x = 4,874 × 2,575.20
  4. Step 4: Simplify right side
    3,530.88x = 12,551,524.80
  5. Step 5: Solve for x
    x = 12,551,524.80/3,530.88
  6. Step 6: Final answer
    x = 3,554.79

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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.