Home / 5,348.86-7,381.29-2,991.22

Finding the Fourth Proportional to 5,348.86, 7,381.29 and 2,991.22

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Solution

The fourth proportional to 5,348.86, 7,381.29 and 2,991.22 is: 4,127.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,348.86 : 7,381.29 = 2,991.22 : x
  2. Step 2: Convert to fraction form
    5,348.86/7,381.29 = 2,991.22/x
  3. Step 3: Cross multiply
    5,348.86x = 7,381.29 × 2,991.22
  4. Step 4: Simplify right side
    5,348.86x = 22,079,062.27
  5. Step 5: Solve for x
    x = 22,079,062.27/5,348.86
  6. Step 6: Final answer
    x = 4,127.81

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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.