Home / 3,824.15-5,277.38-2,122.70

Finding the Fourth Proportional to 3,824.15, 5,277.38 and 2,122.70

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Solution

The fourth proportional to 3,824.15, 5,277.38 and 2,122.70 is: 2,929.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,824.15 : 5,277.38 = 2,122.70 : x
  2. Step 2: Convert to fraction form
    3,824.15/5,277.38 = 2,122.70/x
  3. Step 3: Cross multiply
    3,824.15x = 5,277.38 × 2,122.70
  4. Step 4: Simplify right side
    3,824.15x = 11,202,297.11
  5. Step 5: Solve for x
    x = 11,202,297.11/3,824.15
  6. Step 6: Final answer
    x = 2,929.35

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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.