Home / 3,709.26-5,118.06-2,382.78

Finding the Fourth Proportional to 3,709.26, 5,118.06 and 2,382.78

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Solution

The fourth proportional to 3,709.26, 5,118.06 and 2,382.78 is: 3,287.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,709.26 : 5,118.06 = 2,382.78 : x
  2. Step 2: Convert to fraction form
    3,709.26/5,118.06 = 2,382.78/x
  3. Step 3: Cross multiply
    3,709.26x = 5,118.06 × 2,382.78
  4. Step 4: Simplify right side
    3,709.26x = 12,195,211.01
  5. Step 5: Solve for x
    x = 12,195,211.01/3,709.26
  6. Step 6: Final answer
    x = 3,287.77

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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.