Home / 1,338.14-2,007.15-1,104.86

Finding the Fourth Proportional to 1,338.14, 2,007.15 and 1,104.86

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Solution

The fourth proportional to 1,338.14, 2,007.15 and 1,104.86 is: 1,657.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338.14 : 2,007.15 = 1,104.86 : x
  2. Step 2: Convert to fraction form
    1,338.14/2,007.15 = 1,104.86/x
  3. Step 3: Cross multiply
    1,338.14x = 2,007.15 × 1,104.86
  4. Step 4: Simplify right side
    1,338.14x = 2,217,619.75
  5. Step 5: Solve for x
    x = 2,217,619.75/1,338.14
  6. Step 6: Final answer
    x = 1,657.24

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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.