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Finding the Fourth Proportional to 3,805.33, 5,258.06 and 2,928.71

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Solution

The fourth proportional to 3,805.33, 5,258.06 and 2,928.71 is: 4,046.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,805.33 : 5,258.06 = 2,928.71 : x
  2. Step 2: Convert to fraction form
    3,805.33/5,258.06 = 2,928.71/x
  3. Step 3: Cross multiply
    3,805.33x = 5,258.06 × 2,928.71
  4. Step 4: Simplify right side
    3,805.33x = 15,399,306.61
  5. Step 5: Solve for x
    x = 15,399,306.61/3,805.33
  6. Step 6: Final answer
    x = 4,046.77

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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.