Home / 3,186.43-4,386.36-2,764.30

Finding the Fourth Proportional to 3,186.43, 4,386.36 and 2,764.30

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Solution

The fourth proportional to 3,186.43, 4,386.36 and 2,764.30 is: 3,805.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.43 : 4,386.36 = 2,764.30 : x
  2. Step 2: Convert to fraction form
    3,186.43/4,386.36 = 2,764.30/x
  3. Step 3: Cross multiply
    3,186.43x = 4,386.36 × 2,764.30
  4. Step 4: Simplify right side
    3,186.43x = 12,125,214.80
  5. Step 5: Solve for x
    x = 12,125,214.80/3,186.43
  6. Step 6: Final answer
    x = 3,805.26

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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.