Home / 2,311.44-3,189.39-1,316.52

Finding the Fourth Proportional to 2,311.44, 3,189.39 and 1,316.52

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Solution

The fourth proportional to 2,311.44, 3,189.39 and 1,316.52 is: 1,816.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,311.44 : 3,189.39 = 1,316.52 : x
  2. Step 2: Convert to fraction form
    2,311.44/3,189.39 = 1,316.52/x
  3. Step 3: Cross multiply
    2,311.44x = 3,189.39 × 1,316.52
  4. Step 4: Simplify right side
    2,311.44x = 4,198,898.19
  5. Step 5: Solve for x
    x = 4,198,898.19/2,311.44
  6. Step 6: Final answer
    x = 1,816.58

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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.