Home / 7,146.17-10,721.31-2,217.22

Finding the Fourth Proportional to 7,146.17, 10,721.31 and 2,217.22

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Solution

The fourth proportional to 7,146.17, 10,721.31 and 2,217.22 is: 3,326.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.17 : 10,721.31 = 2,217.22 : x
  2. Step 2: Convert to fraction form
    7,146.17/10,721.31 = 2,217.22/x
  3. Step 3: Cross multiply
    7,146.17x = 10,721.31 × 2,217.22
  4. Step 4: Simplify right side
    7,146.17x = 23,771,540.62
  5. Step 5: Solve for x
    x = 23,771,540.62/7,146.17
  6. Step 6: Final answer
    x = 3,326.47

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1.5x scale

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.