Home / 7,618.65-11,428.01-2,685.61

Finding the Fourth Proportional to 7,618.65, 11,428.01 and 2,685.61

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Solution

The fourth proportional to 7,618.65, 11,428.01 and 2,685.61 is: 4,028.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,618.65 : 11,428.01 = 2,685.61 : x
  2. Step 2: Convert to fraction form
    7,618.65/11,428.01 = 2,685.61/x
  3. Step 3: Cross multiply
    7,618.65x = 11,428.01 × 2,685.61
  4. Step 4: Simplify right side
    7,618.65x = 30,691,164.51
  5. Step 5: Solve for x
    x = 30,691,164.51/7,618.65
  6. Step 6: Final answer
    x = 4,028.43

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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.