Home / 4,149.31-5,730.66-2,820.71

Finding the Fourth Proportional to 4,149.31, 5,730.66 and 2,820.71

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Solution

The fourth proportional to 4,149.31, 5,730.66 and 2,820.71 is: 3,895.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,149.31 : 5,730.66 = 2,820.71 : x
  2. Step 2: Convert to fraction form
    4,149.31/5,730.66 = 2,820.71/x
  3. Step 3: Cross multiply
    4,149.31x = 5,730.66 × 2,820.71
  4. Step 4: Simplify right side
    4,149.31x = 16,164,529.97
  5. Step 5: Solve for x
    x = 16,164,529.97/4,149.31
  6. Step 6: Final answer
    x = 3,895.72

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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.