Home / 2,829.24-3,900.78-2,304.12

Finding the Fourth Proportional to 2,829.24, 3,900.78 and 2,304.12

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Solution

The fourth proportional to 2,829.24, 3,900.78 and 2,304.12 is: 3,176.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,829.24 : 3,900.78 = 2,304.12 : x
  2. Step 2: Convert to fraction form
    2,829.24/3,900.78 = 2,304.12/x
  3. Step 3: Cross multiply
    2,829.24x = 3,900.78 × 2,304.12
  4. Step 4: Simplify right side
    2,829.24x = 8,987,865.21
  5. Step 5: Solve for x
    x = 8,987,865.21/2,829.24
  6. Step 6: Final answer
    x = 3,176.78

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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.