Home / 7,284.06-10,922.09-3,121.47

Finding the Fourth Proportional to 7,284.06, 10,922.09 and 3,121.47

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Solution

The fourth proportional to 7,284.06, 10,922.09 and 3,121.47 is: 4,680.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,284.06 : 10,922.09 = 3,121.47 : x
  2. Step 2: Convert to fraction form
    7,284.06/10,922.09 = 3,121.47/x
  3. Step 3: Cross multiply
    7,284.06x = 10,922.09 × 3,121.47
  4. Step 4: Simplify right side
    7,284.06x = 34,092,960.66
  5. Step 5: Solve for x
    x = 34,092,960.66/7,284.06
  6. Step 6: Final answer
    x = 4,680.49

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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.