Home / 5,236.87-7,226.69-2,878.99

Finding the Fourth Proportional to 5,236.87, 7,226.69 and 2,878.99

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Solution

The fourth proportional to 5,236.87, 7,226.69 and 2,878.99 is: 3,972.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,236.87 : 7,226.69 = 2,878.99 : x
  2. Step 2: Convert to fraction form
    5,236.87/7,226.69 = 2,878.99/x
  3. Step 3: Cross multiply
    5,236.87x = 7,226.69 × 2,878.99
  4. Step 4: Simplify right side
    5,236.87x = 20,805,575.44
  5. Step 5: Solve for x
    x = 20,805,575.44/5,236.87
  6. Step 6: Final answer
    x = 3,972.90

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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.