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Finding the Fourth Proportional to 6,128.64, 8,457.68 and 3,334.12

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Solution

The fourth proportional to 6,128.64, 8,457.68 and 3,334.12 is: 4,601.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128.64 : 8,457.68 = 3,334.12 : x
  2. Step 2: Convert to fraction form
    6,128.64/8,457.68 = 3,334.12/x
  3. Step 3: Cross multiply
    6,128.64x = 8,457.68 × 3,334.12
  4. Step 4: Simplify right side
    6,128.64x = 28,198,920.04
  5. Step 5: Solve for x
    x = 28,198,920.04/6,128.64
  6. Step 6: Final answer
    x = 4,601.17

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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.