Home / 2,101.56-3,152.34-945.96

Finding the Fourth Proportional to 2,101.56, 3,152.34 and 945.96

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Solution

The fourth proportional to 2,101.56, 3,152.34 and 945.96 is: 1,418.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101.56 : 3,152.34 = 945.96 : x
  2. Step 2: Convert to fraction form
    2,101.56/3,152.34 = 945.96/x
  3. Step 3: Cross multiply
    2,101.56x = 3,152.34 × 945.96
  4. Step 4: Simplify right side
    2,101.56x = 2,981,987.55
  5. Step 5: Solve for x
    x = 2,981,987.55/2,101.56
  6. Step 6: Final answer
    x = 1,418.94

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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.