Home / 1,439.14-2,157.32-464.58

Finding the Fourth Proportional to 1,439.14, 2,157.32 and 464.58

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Solution

The fourth proportional to 1,439.14, 2,157.32 and 464.58 is: 696.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439.14 : 2,157.32 = 464.58 : x
  2. Step 2: Convert to fraction form
    1,439.14/2,157.32 = 464.58/x
  3. Step 3: Cross multiply
    1,439.14x = 2,157.32 × 464.58
  4. Step 4: Simplify right side
    1,439.14x = 1,002,247.73
  5. Step 5: Solve for x
    x = 1,002,247.73/1,439.14
  6. Step 6: Final answer
    x = 696.42

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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.