Home / 1,439.17-2,157.23-464.94

Finding the Fourth Proportional to 1,439.17, 2,157.23 and 464.94

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Solution

The fourth proportional to 1,439.17, 2,157.23 and 464.94 is: 696.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439.17 : 2,157.23 = 464.94 : x
  2. Step 2: Convert to fraction form
    1,439.17/2,157.23 = 464.94/x
  3. Step 3: Cross multiply
    1,439.17x = 2,157.23 × 464.94
  4. Step 4: Simplify right side
    1,439.17x = 1,002,983.68
  5. Step 5: Solve for x
    x = 1,002,983.68/1,439.17
  6. Step 6: Final answer
    x = 696.92

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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.