Home / 5,236.62-7,226.35-2,878.74

Finding the Fourth Proportional to 5,236.62, 7,226.35 and 2,878.74

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Solution

The fourth proportional to 5,236.62, 7,226.35 and 2,878.74 is: 3,972.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,236.62 : 7,226.35 = 2,878.74 : x
  2. Step 2: Convert to fraction form
    5,236.62/7,226.35 = 2,878.74/x
  3. Step 3: Cross multiply
    5,236.62x = 7,226.35 × 2,878.74
  4. Step 4: Simplify right side
    5,236.62x = 20,802,775.60
  5. Step 5: Solve for x
    x = 20,802,775.60/5,236.62
  6. Step 6: Final answer
    x = 3,972.56

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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.