Home / 6,781.87-10,174.36-2,621.91

Finding the Fourth Proportional to 6,781.87, 10,174.36 and 2,621.91

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Solution

The fourth proportional to 6,781.87, 10,174.36 and 2,621.91 is: 3,933.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,781.87 : 10,174.36 = 2,621.91 : x
  2. Step 2: Convert to fraction form
    6,781.87/10,174.36 = 2,621.91/x
  3. Step 3: Cross multiply
    6,781.87x = 10,174.36 × 2,621.91
  4. Step 4: Simplify right side
    6,781.87x = 26,676,249.67
  5. Step 5: Solve for x
    x = 26,676,249.67/6,781.87
  6. Step 6: Final answer
    x = 3,933.47

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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.