Home / 3,391.94-5,088.68-1,311.96

Finding the Fourth Proportional to 3,391.94, 5,088.68 and 1,311.96

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Solution

The fourth proportional to 3,391.94, 5,088.68 and 1,311.96 is: 1,968.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.94 : 5,088.68 = 1,311.96 : x
  2. Step 2: Convert to fraction form
    3,391.94/5,088.68 = 1,311.96/x
  3. Step 3: Cross multiply
    3,391.94x = 5,088.68 × 1,311.96
  4. Step 4: Simplify right side
    3,391.94x = 6,676,119.17
  5. Step 5: Solve for x
    x = 6,676,119.17/3,391.94
  6. Step 6: Final answer
    x = 1,968.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.