Home / 3,186.72-4,395.24-2,305.44

Finding the Fourth Proportional to 3,186.72, 4,395.24 and 2,305.44

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Solution

The fourth proportional to 3,186.72, 4,395.24 and 2,305.44 is: 3,179.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.72 : 4,395.24 = 2,305.44 : x
  2. Step 2: Convert to fraction form
    3,186.72/4,395.24 = 2,305.44/x
  3. Step 3: Cross multiply
    3,186.72x = 4,395.24 × 2,305.44
  4. Step 4: Simplify right side
    3,186.72x = 10,132,962.11
  5. Step 5: Solve for x
    x = 10,132,962.11/3,186.72
  6. Step 6: Final answer
    x = 3,179.75

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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.