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Finding the Fourth Proportional to 3,268.31, 4,902.48 and 803.13

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Solution

The fourth proportional to 3,268.31, 4,902.48 and 803.13 is: 1,204.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,268.31 : 4,902.48 = 803.13 : x
  2. Step 2: Convert to fraction form
    3,268.31/4,902.48 = 803.13/x
  3. Step 3: Cross multiply
    3,268.31x = 4,902.48 × 803.13
  4. Step 4: Simplify right side
    3,268.31x = 3,937,300.23
  5. Step 5: Solve for x
    x = 3,937,300.23/3,268.31
  6. Step 6: Final answer
    x = 1,204.69

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1.5x scale

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.