Home / 2,211.17-3,341.79-2,172.89

Finding the Fourth Proportional to 2,211.17, 3,341.79 and 2,172.89

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Solution

The fourth proportional to 2,211.17, 3,341.79 and 2,172.89 is: 3,283.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.17 : 3,341.79 = 2,172.89 : x
  2. Step 2: Convert to fraction form
    2,211.17/3,341.79 = 2,172.89/x
  3. Step 3: Cross multiply
    2,211.17x = 3,341.79 × 2,172.89
  4. Step 4: Simplify right side
    2,211.17x = 7,261,350.43
  5. Step 5: Solve for x
    x = 7,261,350.43/2,211.17
  6. Step 6: Final answer
    x = 3,283.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.