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Finding the Fourth Proportional to 4,719.92, 7,081.08 and 4,423.44

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Solution

The fourth proportional to 4,719.92, 7,081.08 and 4,423.44 is: 6,636.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,719.92 : 7,081.08 = 4,423.44 : x
  2. Step 2: Convert to fraction form
    4,719.92/7,081.08 = 4,423.44/x
  3. Step 3: Cross multiply
    4,719.92x = 7,081.08 × 4,423.44
  4. Step 4: Simplify right side
    4,719.92x = 31,322,732.52
  5. Step 5: Solve for x
    x = 31,322,732.52/4,719.92
  6. Step 6: Final answer
    x = 6,636.28

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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.