Home / 3,724.35-5,138.31-2,211.57

Finding the Fourth Proportional to 3,724.35, 5,138.31 and 2,211.57

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Solution

The fourth proportional to 3,724.35, 5,138.31 and 2,211.57 is: 3,051.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,724.35 : 5,138.31 = 2,211.57 : x
  2. Step 2: Convert to fraction form
    3,724.35/5,138.31 = 2,211.57/x
  3. Step 3: Cross multiply
    3,724.35x = 5,138.31 × 2,211.57
  4. Step 4: Simplify right side
    3,724.35x = 11,363,732.25
  5. Step 5: Solve for x
    x = 11,363,732.25/3,724.35
  6. Step 6: Final answer
    x = 3,051.20

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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.