Home / 3,847.24-5,309.76-2,851.12

Finding the Fourth Proportional to 3,847.24, 5,309.76 and 2,851.12

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Solution

The fourth proportional to 3,847.24, 5,309.76 and 2,851.12 is: 3,934.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,847.24 : 5,309.76 = 2,851.12 : x
  2. Step 2: Convert to fraction form
    3,847.24/5,309.76 = 2,851.12/x
  3. Step 3: Cross multiply
    3,847.24x = 5,309.76 × 2,851.12
  4. Step 4: Simplify right side
    3,847.24x = 15,138,762.93
  5. Step 5: Solve for x
    x = 15,138,762.93/3,847.24
  6. Step 6: Final answer
    x = 3,934.97

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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.