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Finding the Fourth Proportional to 2,757.52, 3,805.44 and 1,515.52

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Solution

The fourth proportional to 2,757.52, 3,805.44 and 1,515.52 is: 2,091.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,757.52 : 3,805.44 = 1,515.52 : x
  2. Step 2: Convert to fraction form
    2,757.52/3,805.44 = 1,515.52/x
  3. Step 3: Cross multiply
    2,757.52x = 3,805.44 × 1,515.52
  4. Step 4: Simplify right side
    2,757.52x = 5,767,220.43
  5. Step 5: Solve for x
    x = 5,767,220.43/2,757.52
  6. Step 6: Final answer
    x = 2,091.45

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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.