Home / 1,286.32-1,928.32-464.01

Finding the Fourth Proportional to 1,286.32, 1,928.32 and 464.01

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Solution

The fourth proportional to 1,286.32, 1,928.32 and 464.01 is: 695.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286.32 : 1,928.32 = 464.01 : x
  2. Step 2: Convert to fraction form
    1,286.32/1,928.32 = 464.01/x
  3. Step 3: Cross multiply
    1,286.32x = 1,928.32 × 464.01
  4. Step 4: Simplify right side
    1,286.32x = 894,759.76
  5. Step 5: Solve for x
    x = 894,759.76/1,286.32
  6. Step 6: Final answer
    x = 695.60

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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.