Home / 3,189.83-4,402.23-1,773.65

Finding the Fourth Proportional to 3,189.83, 4,402.23 and 1,773.65

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Solution

The fourth proportional to 3,189.83, 4,402.23 and 1,773.65 is: 2,447.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.83 : 4,402.23 = 1,773.65 : x
  2. Step 2: Convert to fraction form
    3,189.83/4,402.23 = 1,773.65/x
  3. Step 3: Cross multiply
    3,189.83x = 4,402.23 × 1,773.65
  4. Step 4: Simplify right side
    3,189.83x = 7,808,015.24
  5. Step 5: Solve for x
    x = 7,808,015.24/3,189.83
  6. Step 6: Final answer
    x = 2,447.78

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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.