Home / 2,289.70-3,158.43-1,691.62

Finding the Fourth Proportional to 2,289.70, 3,158.43 and 1,691.62

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Solution

The fourth proportional to 2,289.70, 3,158.43 and 1,691.62 is: 2,333.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.70 : 3,158.43 = 1,691.62 : x
  2. Step 2: Convert to fraction form
    2,289.70/3,158.43 = 1,691.62/x
  3. Step 3: Cross multiply
    2,289.70x = 3,158.43 × 1,691.62
  4. Step 4: Simplify right side
    2,289.70x = 5,342,863.36
  5. Step 5: Solve for x
    x = 5,342,863.36/2,289.70
  6. Step 6: Final answer
    x = 2,333.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.