Home / 1,550.76-2,138.22-1,269.96

Finding the Fourth Proportional to 1,550.76, 2,138.22 and 1,269.96

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Solution

The fourth proportional to 1,550.76, 2,138.22 and 1,269.96 is: 1,751.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,550.76 : 2,138.22 = 1,269.96 : x
  2. Step 2: Convert to fraction form
    1,550.76/2,138.22 = 1,269.96/x
  3. Step 3: Cross multiply
    1,550.76x = 2,138.22 × 1,269.96
  4. Step 4: Simplify right side
    1,550.76x = 2,715,453.87
  5. Step 5: Solve for x
    x = 2,715,453.87/1,550.76
  6. Step 6: Final answer
    x = 1,751.05

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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.