Home / 3,189.66-4,401.75-1,754.05

Finding the Fourth Proportional to 3,189.66, 4,401.75 and 1,754.05

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Solution

The fourth proportional to 3,189.66, 4,401.75 and 1,754.05 is: 2,420.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.66 : 4,401.75 = 1,754.05 : x
  2. Step 2: Convert to fraction form
    3,189.66/4,401.75 = 1,754.05/x
  3. Step 3: Cross multiply
    3,189.66x = 4,401.75 × 1,754.05
  4. Step 4: Simplify right side
    3,189.66x = 7,720,882.97
  5. Step 5: Solve for x
    x = 7,720,882.97/3,189.66
  6. Step 6: Final answer
    x = 2,420.60

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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.