Home / 3,811.73-5,689.71-3,521.08

Finding the Fourth Proportional to 3,811.73, 5,689.71 and 3,521.08

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Solution

The fourth proportional to 3,811.73, 5,689.71 and 3,521.08 is: 5,255.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.73 : 5,689.71 = 3,521.08 : x
  2. Step 2: Convert to fraction form
    3,811.73/5,689.71 = 3,521.08/x
  3. Step 3: Cross multiply
    3,811.73x = 5,689.71 × 3,521.08
  4. Step 4: Simplify right side
    3,811.73x = 20,033,924.09
  5. Step 5: Solve for x
    x = 20,033,924.09/3,811.73
  6. Step 6: Final answer
    x = 5,255.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.