Home / 3,162.11-4,354.16-2,865.51

Finding the Fourth Proportional to 3,162.11, 4,354.16 and 2,865.51

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Solution

The fourth proportional to 3,162.11, 4,354.16 and 2,865.51 is: 3,945.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,162.11 : 4,354.16 = 2,865.51 : x
  2. Step 2: Convert to fraction form
    3,162.11/4,354.16 = 2,865.51/x
  3. Step 3: Cross multiply
    3,162.11x = 4,354.16 × 2,865.51
  4. Step 4: Simplify right side
    3,162.11x = 12,476,874.69
  5. Step 5: Solve for x
    x = 12,476,874.69/3,162.11
  6. Step 6: Final answer
    x = 3,945.75

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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.