Home / 3,391.71-4,680.98-2,065.61

Finding the Fourth Proportional to 3,391.71, 4,680.98 and 2,065.61

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Solution

The fourth proportional to 3,391.71, 4,680.98 and 2,065.61 is: 2,850.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.71 : 4,680.98 = 2,065.61 : x
  2. Step 2: Convert to fraction form
    3,391.71/4,680.98 = 2,065.61/x
  3. Step 3: Cross multiply
    3,391.71x = 4,680.98 × 2,065.61
  4. Step 4: Simplify right side
    3,391.71x = 9,669,045.36
  5. Step 5: Solve for x
    x = 9,669,045.36/3,391.71
  6. Step 6: Final answer
    x = 2,850.79

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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.