Home / 3,161.72-4,720.70-2,964.89

Finding the Fourth Proportional to 3,161.72, 4,720.70 and 2,964.89

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Solution

The fourth proportional to 3,161.72, 4,720.70 and 2,964.89 is: 4,426.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.72 : 4,720.70 = 2,964.89 : x
  2. Step 2: Convert to fraction form
    3,161.72/4,720.70 = 2,964.89/x
  3. Step 3: Cross multiply
    3,161.72x = 4,720.70 × 2,964.89
  4. Step 4: Simplify right side
    3,161.72x = 13,996,317.80
  5. Step 5: Solve for x
    x = 13,996,317.80/3,161.72
  6. Step 6: Final answer
    x = 4,426.81

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.