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Finding the Fourth Proportional to 3,268.29, 4,902.47 and 803.16

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Solution

The fourth proportional to 3,268.29, 4,902.47 and 803.16 is: 1,204.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,268.29 : 4,902.47 = 803.16 : x
  2. Step 2: Convert to fraction form
    3,268.29/4,902.47 = 803.16/x
  3. Step 3: Cross multiply
    3,268.29x = 4,902.47 × 803.16
  4. Step 4: Simplify right side
    3,268.29x = 3,937,467.81
  5. Step 5: Solve for x
    x = 3,937,467.81/3,268.29
  6. Step 6: Final answer
    x = 1,204.75

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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.