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Finding the Fourth Proportional to 7,540.46, 11,310 and 2,858.46

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Solution

The fourth proportional to 7,540.46, 11,310 and 2,858.46 is: 4,287.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,540.46 : 11,310 = 2,858.46 : x
  2. Step 2: Convert to fraction form
    7,540.46/11,310 = 2,858.46/x
  3. Step 3: Cross multiply
    7,540.46x = 11,310 × 2,858.46
  4. Step 4: Simplify right side
    7,540.46x = 32,329,182.60
  5. Step 5: Solve for x
    x = 32,329,182.60/7,540.46
  6. Step 6: Final answer
    x = 4,287.43

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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.