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Finding the Fourth Proportional to 2,289.56, 3,435.74 and 902.66

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Solution

The fourth proportional to 2,289.56, 3,435.74 and 902.66 is: 1,354.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.56 : 3,435.74 = 902.66 : x
  2. Step 2: Convert to fraction form
    2,289.56/3,435.74 = 902.66/x
  3. Step 3: Cross multiply
    2,289.56x = 3,435.74 × 902.66
  4. Step 4: Simplify right side
    2,289.56x = 3,101,290.15
  5. Step 5: Solve for x
    x = 3,101,290.15/2,289.56
  6. Step 6: Final answer
    x = 1,354.54

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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.