Home / 3,391.73-4,683.80-2,215.61

Finding the Fourth Proportional to 3,391.73, 4,683.80 and 2,215.61

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Solution

The fourth proportional to 3,391.73, 4,683.80 and 2,215.61 is: 3,059.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.73 : 4,683.80 = 2,215.61 : x
  2. Step 2: Convert to fraction form
    3,391.73/4,683.80 = 2,215.61/x
  3. Step 3: Cross multiply
    3,391.73x = 4,683.80 × 2,215.61
  4. Step 4: Simplify right side
    3,391.73x = 10,377,463.04
  5. Step 5: Solve for x
    x = 10,377,463.04/3,391.73
  6. Step 6: Final answer
    x = 3,059.64

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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.