Home / 2,820.08-3,884.76-2,399.09

Finding the Fourth Proportional to 2,820.08, 3,884.76 and 2,399.09

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Solution

The fourth proportional to 2,820.08, 3,884.76 and 2,399.09 is: 3,304.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.08 : 3,884.76 = 2,399.09 : x
  2. Step 2: Convert to fraction form
    2,820.08/3,884.76 = 2,399.09/x
  3. Step 3: Cross multiply
    2,820.08x = 3,884.76 × 2,399.09
  4. Step 4: Simplify right side
    2,820.08x = 9,319,869.44
  5. Step 5: Solve for x
    x = 9,319,869.44/2,820.08
  6. Step 6: Final answer
    x = 3,304.82

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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.