Home / 2,949.11-4,069.68-1,622.81

Finding the Fourth Proportional to 2,949.11, 4,069.68 and 1,622.81

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Solution

The fourth proportional to 2,949.11, 4,069.68 and 1,622.81 is: 2,239.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,949.11 : 4,069.68 = 1,622.81 : x
  2. Step 2: Convert to fraction form
    2,949.11/4,069.68 = 1,622.81/x
  3. Step 3: Cross multiply
    2,949.11x = 4,069.68 × 1,622.81
  4. Step 4: Simplify right side
    2,949.11x = 6,604,327.58
  5. Step 5: Solve for x
    x = 6,604,327.58/2,949.11
  6. Step 6: Final answer
    x = 2,239.43

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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.