Home / 3,169.89-4,755.65-1,321.83

Finding the Fourth Proportional to 3,169.89, 4,755.65 and 1,321.83

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Solution

The fourth proportional to 3,169.89, 4,755.65 and 1,321.83 is: 1,983.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,169.89 : 4,755.65 = 1,321.83 : x
  2. Step 2: Convert to fraction form
    3,169.89/4,755.65 = 1,321.83/x
  3. Step 3: Cross multiply
    3,169.89x = 4,755.65 × 1,321.83
  4. Step 4: Simplify right side
    3,169.89x = 6,286,154.23
  5. Step 5: Solve for x
    x = 6,286,154.23/3,169.89
  6. Step 6: Final answer
    x = 1,983.08

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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.