Home / 2,646.11-3,969.18-2,151.94

Finding the Fourth Proportional to 2,646.11, 3,969.18 and 2,151.94

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Solution

The fourth proportional to 2,646.11, 3,969.18 and 2,151.94 is: 3,227.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,646.11 : 3,969.18 = 2,151.94 : x
  2. Step 2: Convert to fraction form
    2,646.11/3,969.18 = 2,151.94/x
  3. Step 3: Cross multiply
    2,646.11x = 3,969.18 × 2,151.94
  4. Step 4: Simplify right side
    2,646.11x = 8,541,434.73
  5. Step 5: Solve for x
    x = 8,541,434.73/2,646.11
  6. Step 6: Final answer
    x = 3,227.93

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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.