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Finding the Fourth Proportional to 3,242.31, 4,863.81 and 902.32

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Solution

The fourth proportional to 3,242.31, 4,863.81 and 902.32 is: 1,353.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,242.31 : 4,863.81 = 902.32 : x
  2. Step 2: Convert to fraction form
    3,242.31/4,863.81 = 902.32/x
  3. Step 3: Cross multiply
    3,242.31x = 4,863.81 × 902.32
  4. Step 4: Simplify right side
    3,242.31x = 4,388,713.04
  5. Step 5: Solve for x
    x = 4,388,713.04/3,242.31
  6. Step 6: Final answer
    x = 1,353.58

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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.