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Finding the Fourth Proportional to 6,617, 9,928.74 and 2,724.68

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Solution

The fourth proportional to 6,617, 9,928.74 and 2,724.68 is: 4,088.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,617 : 9,928.74 = 2,724.68 : x
  2. Step 2: Convert to fraction form
    6,617/9,928.74 = 2,724.68/x
  3. Step 3: Cross multiply
    6,617x = 9,928.74 × 2,724.68
  4. Step 4: Simplify right side
    6,617x = 27,052,639.30
  5. Step 5: Solve for x
    x = 27,052,639.30/6,617
  6. Step 6: Final answer
    x = 4,088.35

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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.