Home / 2,318.82-3,461.71-2,221.62

Finding the Fourth Proportional to 2,318.82, 3,461.71 and 2,221.62

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Solution

The fourth proportional to 2,318.82, 3,461.71 and 2,221.62 is: 3,316.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.82 : 3,461.71 = 2,221.62 : x
  2. Step 2: Convert to fraction form
    2,318.82/3,461.71 = 2,221.62/x
  3. Step 3: Cross multiply
    2,318.82x = 3,461.71 × 2,221.62
  4. Step 4: Simplify right side
    2,318.82x = 7,690,604.17
  5. Step 5: Solve for x
    x = 7,690,604.17/2,318.82
  6. Step 6: Final answer
    x = 3,316.60

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1.5x scale

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.