Home / 2,146.79-3,221.99-849.17

Finding the Fourth Proportional to 2,146.79, 3,221.99 and 849.17

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Solution

The fourth proportional to 2,146.79, 3,221.99 and 849.17 is: 1,274.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,146.79 : 3,221.99 = 849.17 : x
  2. Step 2: Convert to fraction form
    2,146.79/3,221.99 = 849.17/x
  3. Step 3: Cross multiply
    2,146.79x = 3,221.99 × 849.17
  4. Step 4: Simplify right side
    2,146.79x = 2,736,017.25
  5. Step 5: Solve for x
    x = 2,736,017.25/2,146.79
  6. Step 6: Final answer
    x = 1,274.47

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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.