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Finding the Fourth Proportional to 5,348.97, 7,381.54 and 2,991.11

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Solution

The fourth proportional to 5,348.97, 7,381.54 and 2,991.11 is: 4,127.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,348.97 : 7,381.54 = 2,991.11 : x
  2. Step 2: Convert to fraction form
    5,348.97/7,381.54 = 2,991.11/x
  3. Step 3: Cross multiply
    5,348.97x = 7,381.54 × 2,991.11
  4. Step 4: Simplify right side
    5,348.97x = 22,078,999.36
  5. Step 5: Solve for x
    x = 22,078,999.36/5,348.97
  6. Step 6: Final answer
    x = 4,127.71

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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.