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Finding the Fourth Proportional to 3,789.97, 5,230.97 and 2,547.25

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Solution

The fourth proportional to 3,789.97, 5,230.97 and 2,547.25 is: 3,515.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,789.97 : 5,230.97 = 2,547.25 : x
  2. Step 2: Convert to fraction form
    3,789.97/5,230.97 = 2,547.25/x
  3. Step 3: Cross multiply
    3,789.97x = 5,230.97 × 2,547.25
  4. Step 4: Simplify right side
    3,789.97x = 13,324,588.33
  5. Step 5: Solve for x
    x = 13,324,588.33/3,789.97
  6. Step 6: Final answer
    x = 3,515.75

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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.