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Finding the Fourth Proportional to 2,948.26, 4,422.54 and 757.01

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Solution

The fourth proportional to 2,948.26, 4,422.54 and 757.01 is: 1,135.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,948.26 : 4,422.54 = 757.01 : x
  2. Step 2: Convert to fraction form
    2,948.26/4,422.54 = 757.01/x
  3. Step 3: Cross multiply
    2,948.26x = 4,422.54 × 757.01
  4. Step 4: Simplify right side
    2,948.26x = 3,347,887.73
  5. Step 5: Solve for x
    x = 3,347,887.73/2,948.26
  6. Step 6: Final answer
    x = 1,135.55

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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.