Home / 4,207.14-5,805.86-2,439.78

Finding the Fourth Proportional to 4,207.14, 5,805.86 and 2,439.78

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Solution

The fourth proportional to 4,207.14, 5,805.86 and 2,439.78 is: 3,366.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,207.14 : 5,805.86 = 2,439.78 : x
  2. Step 2: Convert to fraction form
    4,207.14/5,805.86 = 2,439.78/x
  3. Step 3: Cross multiply
    4,207.14x = 5,805.86 × 2,439.78
  4. Step 4: Simplify right side
    4,207.14x = 14,165,021.11
  5. Step 5: Solve for x
    x = 14,165,021.11/4,207.14
  6. Step 6: Final answer
    x = 3,366.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.