Home / 2,838.29-3,913.20-2,079.68

Finding the Fourth Proportional to 2,838.29, 3,913.20 and 2,079.68

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Solution

The fourth proportional to 2,838.29, 3,913.20 and 2,079.68 is: 2,867.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,838.29 : 3,913.20 = 2,079.68 : x
  2. Step 2: Convert to fraction form
    2,838.29/3,913.20 = 2,079.68/x
  3. Step 3: Cross multiply
    2,838.29x = 3,913.20 × 2,079.68
  4. Step 4: Simplify right side
    2,838.29x = 8,138,203.78
  5. Step 5: Solve for x
    x = 8,138,203.78/2,838.29
  6. Step 6: Final answer
    x = 2,867.29

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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.