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Finding the Fourth Proportional to 4,364.78, 6,544.68 and 2,979.78

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Solution

The fourth proportional to 4,364.78, 6,544.68 and 2,979.78 is: 4,467.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,364.78 : 6,544.68 = 2,979.78 : x
  2. Step 2: Convert to fraction form
    4,364.78/6,544.68 = 2,979.78/x
  3. Step 3: Cross multiply
    4,364.78x = 6,544.68 × 2,979.78
  4. Step 4: Simplify right side
    4,364.78x = 19,501,706.57
  5. Step 5: Solve for x
    x = 19,501,706.57/4,364.78
  6. Step 6: Final answer
    x = 4,467.98

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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.