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Finding the Fourth Proportional to 6,107.71, 8,428.62 and 3,313.21

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Solution

The fourth proportional to 6,107.71, 8,428.62 and 3,313.21 is: 4,572.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,107.71 : 8,428.62 = 3,313.21 : x
  2. Step 2: Convert to fraction form
    6,107.71/8,428.62 = 3,313.21/x
  3. Step 3: Cross multiply
    6,107.71x = 8,428.62 × 3,313.21
  4. Step 4: Simplify right side
    6,107.71x = 27,925,788.07
  5. Step 5: Solve for x
    x = 27,925,788.07/6,107.71
  6. Step 6: Final answer
    x = 4,572.22

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.