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Finding the Fourth Proportional to 6,648.65, 9,175.33 and 3,664.68

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Solution

The fourth proportional to 6,648.65, 9,175.33 and 3,664.68 is: 5,057.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,648.65 : 9,175.33 = 3,664.68 : x
  2. Step 2: Convert to fraction form
    6,648.65/9,175.33 = 3,664.68/x
  3. Step 3: Cross multiply
    6,648.65x = 9,175.33 × 3,664.68
  4. Step 4: Simplify right side
    6,648.65x = 33,624,618.52
  5. Step 5: Solve for x
    x = 33,624,618.52/6,648.65
  6. Step 6: Final answer
    x = 5,057.36

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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.