Home / 3,389.88-5,084.30-1,310.85

Finding the Fourth Proportional to 3,389.88, 5,084.30 and 1,310.85

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Solution

The fourth proportional to 3,389.88, 5,084.30 and 1,310.85 is: 1,966.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.88 : 5,084.30 = 1,310.85 : x
  2. Step 2: Convert to fraction form
    3,389.88/5,084.30 = 1,310.85/x
  3. Step 3: Cross multiply
    3,389.88x = 5,084.30 × 1,310.85
  4. Step 4: Simplify right side
    3,389.88x = 6,664,757.93
  5. Step 5: Solve for x
    x = 6,664,757.93/3,389.88
  6. Step 6: Final answer
    x = 1,966.07

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1.5x scale

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.