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Finding the Fourth Proportional to 5,277.11, 7,282.11 and 2,919.11

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Solution

The fourth proportional to 5,277.11, 7,282.11 and 2,919.11 is: 4,028.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,277.11 : 7,282.11 = 2,919.11 : x
  2. Step 2: Convert to fraction form
    5,277.11/7,282.11 = 2,919.11/x
  3. Step 3: Cross multiply
    5,277.11x = 7,282.11 × 2,919.11
  4. Step 4: Simplify right side
    5,277.11x = 21,257,280.12
  5. Step 5: Solve for x
    x = 21,257,280.12/5,277.11
  6. Step 6: Final answer
    x = 4,028.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.