Home / 2,872.46-3,963.33-1,693.61

Finding the Fourth Proportional to 2,872.46, 3,963.33 and 1,693.61

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Solution

The fourth proportional to 2,872.46, 3,963.33 and 1,693.61 is: 2,336.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872.46 : 3,963.33 = 1,693.61 : x
  2. Step 2: Convert to fraction form
    2,872.46/3,963.33 = 1,693.61/x
  3. Step 3: Cross multiply
    2,872.46x = 3,963.33 × 1,693.61
  4. Step 4: Simplify right side
    2,872.46x = 6,712,330.37
  5. Step 5: Solve for x
    x = 6,712,330.37/2,872.46
  6. Step 6: Final answer
    x = 2,336.79

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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.