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Finding the Fourth Proportional to 2,938.25, 4,407.29 and 746.97

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Solution

The fourth proportional to 2,938.25, 4,407.29 and 746.97 is: 1,120.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.25 : 4,407.29 = 746.97 : x
  2. Step 2: Convert to fraction form
    2,938.25/4,407.29 = 746.97/x
  3. Step 3: Cross multiply
    2,938.25x = 4,407.29 × 746.97
  4. Step 4: Simplify right side
    2,938.25x = 3,292,118.64
  5. Step 5: Solve for x
    x = 3,292,118.64/2,938.25
  6. Step 6: Final answer
    x = 1,120.44

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1.5x scale

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.