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Finding the Fourth Proportional to 3,833.91, 5,289.71 and 2,948.13

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Solution

The fourth proportional to 3,833.91, 5,289.71 and 2,948.13 is: 4,067.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,833.91 : 5,289.71 = 2,948.13 : x
  2. Step 2: Convert to fraction form
    3,833.91/5,289.71 = 2,948.13/x
  3. Step 3: Cross multiply
    3,833.91x = 5,289.71 × 2,948.13
  4. Step 4: Simplify right side
    3,833.91x = 15,594,738.00
  5. Step 5: Solve for x
    x = 15,594,738.00/3,833.91
  6. Step 6: Final answer
    x = 4,067.58

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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.