Home / 7,149.15-10,716.24-2,991.54

Finding the Fourth Proportional to 7,149.15, 10,716.24 and 2,991.54

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Solution

The fourth proportional to 7,149.15, 10,716.24 and 2,991.54 is: 4,484.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149.15 : 10,716.24 = 2,991.54 : x
  2. Step 2: Convert to fraction form
    7,149.15/10,716.24 = 2,991.54/x
  3. Step 3: Cross multiply
    7,149.15x = 10,716.24 × 2,991.54
  4. Step 4: Simplify right side
    7,149.15x = 32,058,060.61
  5. Step 5: Solve for x
    x = 32,058,060.61/7,149.15
  6. Step 6: Final answer
    x = 4,484.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.