Home / 2,286.44-3,155.11-1,291.58

Finding the Fourth Proportional to 2,286.44, 3,155.11 and 1,291.58

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Solution

The fourth proportional to 2,286.44, 3,155.11 and 1,291.58 is: 1,782.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,286.44 : 3,155.11 = 1,291.58 : x
  2. Step 2: Convert to fraction form
    2,286.44/3,155.11 = 1,291.58/x
  3. Step 3: Cross multiply
    2,286.44x = 3,155.11 × 1,291.58
  4. Step 4: Simplify right side
    2,286.44x = 4,075,057.97
  5. Step 5: Solve for x
    x = 4,075,057.97/2,286.44
  6. Step 6: Final answer
    x = 1,782.28

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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.