Home / 2,511.21-3,767.46-756.15

Finding the Fourth Proportional to 2,511.21, 3,767.46 and 756.15

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Solution

The fourth proportional to 2,511.21, 3,767.46 and 756.15 is: 1,134.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,511.21 : 3,767.46 = 756.15 : x
  2. Step 2: Convert to fraction form
    2,511.21/3,767.46 = 756.15/x
  3. Step 3: Cross multiply
    2,511.21x = 3,767.46 × 756.15
  4. Step 4: Simplify right side
    2,511.21x = 2,848,764.88
  5. Step 5: Solve for x
    x = 2,848,764.88/2,511.21
  6. Step 6: Final answer
    x = 1,134.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.