Home / 4,138.39-6,207.69-1,216.79

Finding the Fourth Proportional to 4,138.39, 6,207.69 and 1,216.79

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Solution

The fourth proportional to 4,138.39, 6,207.69 and 1,216.79 is: 1,825.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138.39 : 6,207.69 = 1,216.79 : x
  2. Step 2: Convert to fraction form
    4,138.39/6,207.69 = 1,216.79/x
  3. Step 3: Cross multiply
    4,138.39x = 6,207.69 × 1,216.79
  4. Step 4: Simplify right side
    4,138.39x = 7,553,455.12
  5. Step 5: Solve for x
    x = 7,553,455.12/4,138.39
  6. Step 6: Final answer
    x = 1,825.22

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1.5x scale

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.