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Finding the Fourth Proportional to 3,291.93, 4,910.13 and 2,799.45

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Solution

The fourth proportional to 3,291.93, 4,910.13 and 2,799.45 is: 4,175.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,291.93 : 4,910.13 = 2,799.45 : x
  2. Step 2: Convert to fraction form
    3,291.93/4,910.13 = 2,799.45/x
  3. Step 3: Cross multiply
    3,291.93x = 4,910.13 × 2,799.45
  4. Step 4: Simplify right side
    3,291.93x = 13,745,663.43
  5. Step 5: Solve for x
    x = 13,745,663.43/3,291.93
  6. Step 6: Final answer
    x = 4,175.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.