Home / 4,212.75-6,318.62-1,439.36

Finding the Fourth Proportional to 4,212.75, 6,318.62 and 1,439.36

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Solution

The fourth proportional to 4,212.75, 6,318.62 and 1,439.36 is: 2,158.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.75 : 6,318.62 = 1,439.36 : x
  2. Step 2: Convert to fraction form
    4,212.75/6,318.62 = 1,439.36/x
  3. Step 3: Cross multiply
    4,212.75x = 6,318.62 × 1,439.36
  4. Step 4: Simplify right side
    4,212.75x = 9,094,777.48
  5. Step 5: Solve for x
    x = 9,094,777.48/4,212.75
  6. Step 6: Final answer
    x = 2,158.87

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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.