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Finding the Fourth Proportional to 6,515.54, 8,993.01 and 3,722.66

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Solution

The fourth proportional to 6,515.54, 8,993.01 and 3,722.66 is: 5,138.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,515.54 : 8,993.01 = 3,722.66 : x
  2. Step 2: Convert to fraction form
    6,515.54/8,993.01 = 3,722.66/x
  3. Step 3: Cross multiply
    6,515.54x = 8,993.01 × 3,722.66
  4. Step 4: Simplify right side
    6,515.54x = 33,477,918.61
  5. Step 5: Solve for x
    x = 33,477,918.61/6,515.54
  6. Step 6: Final answer
    x = 5,138.16

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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.