Home / 2,135.08-3,203.40-902.38

Finding the Fourth Proportional to 2,135.08, 3,203.40 and 902.38

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Solution

The fourth proportional to 2,135.08, 3,203.40 and 902.38 is: 1,353.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.08 : 3,203.40 = 902.38 : x
  2. Step 2: Convert to fraction form
    2,135.08/3,203.40 = 902.38/x
  3. Step 3: Cross multiply
    2,135.08x = 3,203.40 × 902.38
  4. Step 4: Simplify right side
    2,135.08x = 2,890,684.09
  5. Step 5: Solve for x
    x = 2,890,684.09/2,135.08
  6. Step 6: Final answer
    x = 1,353.90

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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.