Home / 2,884.13-3,976.12-2,175.65

Finding the Fourth Proportional to 2,884.13, 3,976.12 and 2,175.65

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Solution

The fourth proportional to 2,884.13, 3,976.12 and 2,175.65 is: 2,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,884.13 : 3,976.12 = 2,175.65 : x
  2. Step 2: Convert to fraction form
    2,884.13/3,976.12 = 2,175.65/x
  3. Step 3: Cross multiply
    2,884.13x = 3,976.12 × 2,175.65
  4. Step 4: Simplify right side
    2,884.13x = 8,650,645.48
  5. Step 5: Solve for x
    x = 8,650,645.48/2,884.13
  6. Step 6: Final answer
    x = 2,999.40

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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.