Home / 7,279-10,918.72-2,084.88

Finding the Fourth Proportional to 7,279, 10,918.72 and 2,084.88

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Solution

The fourth proportional to 7,279, 10,918.72 and 2,084.88 is: 3,127.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279 : 10,918.72 = 2,084.88 : x
  2. Step 2: Convert to fraction form
    7,279/10,918.72 = 2,084.88/x
  3. Step 3: Cross multiply
    7,279x = 10,918.72 × 2,084.88
  4. Step 4: Simplify right side
    7,279x = 22,764,220.95
  5. Step 5: Solve for x
    x = 22,764,220.95/7,279
  6. Step 6: Final answer
    x = 3,127.38

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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.