Home / 2,289.06-3,431.88-1,135.62

Finding the Fourth Proportional to 2,289.06, 3,431.88 and 1,135.62

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Solution

The fourth proportional to 2,289.06, 3,431.88 and 1,135.62 is: 1,702.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.06 : 3,431.88 = 1,135.62 : x
  2. Step 2: Convert to fraction form
    2,289.06/3,431.88 = 1,135.62/x
  3. Step 3: Cross multiply
    2,289.06x = 3,431.88 × 1,135.62
  4. Step 4: Simplify right side
    2,289.06x = 3,897,311.57
  5. Step 5: Solve for x
    x = 3,897,311.57/2,289.06
  6. Step 6: Final answer
    x = 1,702.58

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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.