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Finding the Fourth Proportional to 6,384.65, 8,809.50 and 3,731.54

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Solution

The fourth proportional to 6,384.65, 8,809.50 and 3,731.54 is: 5,148.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,384.65 : 8,809.50 = 3,731.54 : x
  2. Step 2: Convert to fraction form
    6,384.65/8,809.50 = 3,731.54/x
  3. Step 3: Cross multiply
    6,384.65x = 8,809.50 × 3,731.54
  4. Step 4: Simplify right side
    6,384.65x = 32,873,001.63
  5. Step 5: Solve for x
    x = 32,873,001.63/6,384.65
  6. Step 6: Final answer
    x = 5,148.76

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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.