Home / 4,138.28-6,207.45-1,216.64

Finding the Fourth Proportional to 4,138.28, 6,207.45 and 1,216.64

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Solution

The fourth proportional to 4,138.28, 6,207.45 and 1,216.64 is: 1,824.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138.28 : 6,207.45 = 1,216.64 : x
  2. Step 2: Convert to fraction form
    4,138.28/6,207.45 = 1,216.64/x
  3. Step 3: Cross multiply
    4,138.28x = 6,207.45 × 1,216.64
  4. Step 4: Simplify right side
    4,138.28x = 7,552,200.93
  5. Step 5: Solve for x
    x = 7,552,200.93/4,138.28
  6. Step 6: Final answer
    x = 1,824.96

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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.