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Finding the Fourth Proportional to 7,488.54, 11,233.08 and 2,808.08

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Solution

The fourth proportional to 7,488.54, 11,233.08 and 2,808.08 is: 4,212.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,488.54 : 11,233.08 = 2,808.08 : x
  2. Step 2: Convert to fraction form
    7,488.54/11,233.08 = 2,808.08/x
  3. Step 3: Cross multiply
    7,488.54x = 11,233.08 × 2,808.08
  4. Step 4: Simplify right side
    7,488.54x = 31,543,331.12
  5. Step 5: Solve for x
    x = 31,543,331.12/7,488.54
  6. Step 6: Final answer
    x = 4,212.21

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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.