Home / 1,930.32-2,663.21-1,183.90

Finding the Fourth Proportional to 1,930.32, 2,663.21 and 1,183.90

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Solution

The fourth proportional to 1,930.32, 2,663.21 and 1,183.90 is: 1,633.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930.32 : 2,663.21 = 1,183.90 : x
  2. Step 2: Convert to fraction form
    1,930.32/2,663.21 = 1,183.90/x
  3. Step 3: Cross multiply
    1,930.32x = 2,663.21 × 1,183.90
  4. Step 4: Simplify right side
    1,930.32x = 3,152,974.32
  5. Step 5: Solve for x
    x = 3,152,974.32/1,930.32
  6. Step 6: Final answer
    x = 1,633.39

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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.