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Finding the Fourth Proportional to 7,728, 10,666.08 and 4,584.12

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Solution

The fourth proportional to 7,728, 10,666.08 and 4,584.12 is: 6,326.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,728 : 10,666.08 = 4,584.12 : x
  2. Step 2: Convert to fraction form
    7,728/10,666.08 = 4,584.12/x
  3. Step 3: Cross multiply
    7,728x = 10,666.08 × 4,584.12
  4. Step 4: Simplify right side
    7,728x = 48,894,590.65
  5. Step 5: Solve for x
    x = 48,894,590.65/7,728
  6. Step 6: Final answer
    x = 6,326.94

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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.