Home / 2,290.87-3,161.55-1,295.79

Finding the Fourth Proportional to 2,290.87, 3,161.55 and 1,295.79

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Solution

The fourth proportional to 2,290.87, 3,161.55 and 1,295.79 is: 1,788.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,290.87 : 3,161.55 = 1,295.79 : x
  2. Step 2: Convert to fraction form
    2,290.87/3,161.55 = 1,295.79/x
  3. Step 3: Cross multiply
    2,290.87x = 3,161.55 × 1,295.79
  4. Step 4: Simplify right side
    2,290.87x = 4,096,704.87
  5. Step 5: Solve for x
    x = 4,096,704.87/2,290.87
  6. Step 6: Final answer
    x = 1,788.27

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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.