Home / 7,212.38-10,818.99-2,018.66

Finding the Fourth Proportional to 7,212.38, 10,818.99 and 2,018.66

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Solution

The fourth proportional to 7,212.38, 10,818.99 and 2,018.66 is: 3,028.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212.38 : 10,818.99 = 2,018.66 : x
  2. Step 2: Convert to fraction form
    7,212.38/10,818.99 = 2,018.66/x
  3. Step 3: Cross multiply
    7,212.38x = 10,818.99 × 2,018.66
  4. Step 4: Simplify right side
    7,212.38x = 21,839,808.26
  5. Step 5: Solve for x
    x = 21,839,808.26/7,212.38
  6. Step 6: Final answer
    x = 3,028.10

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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.