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Finding the Fourth Proportional to 6,519.78, 8,996.94 and 3,687.48

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Solution

The fourth proportional to 6,519.78, 8,996.94 and 3,687.48 is: 5,088.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,519.78 : 8,996.94 = 3,687.48 : x
  2. Step 2: Convert to fraction form
    6,519.78/8,996.94 = 3,687.48/x
  3. Step 3: Cross multiply
    6,519.78x = 8,996.94 × 3,687.48
  4. Step 4: Simplify right side
    6,519.78x = 33,176,036.31
  5. Step 5: Solve for x
    x = 33,176,036.31/6,519.78
  6. Step 6: Final answer
    x = 5,088.52

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1.5x scale

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.