Home / 1,286.03-1,928.87-464.19

Finding the Fourth Proportional to 1,286.03, 1,928.87 and 464.19

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Solution

The fourth proportional to 1,286.03, 1,928.87 and 464.19 is: 696.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286.03 : 1,928.87 = 464.19 : x
  2. Step 2: Convert to fraction form
    1,286.03/1,928.87 = 464.19/x
  3. Step 3: Cross multiply
    1,286.03x = 1,928.87 × 464.19
  4. Step 4: Simplify right side
    1,286.03x = 895,362.17
  5. Step 5: Solve for x
    x = 895,362.17/1,286.03
  6. Step 6: Final answer
    x = 696.22

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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.