Home / 2,764.35-4,145.91-1,667.21

Finding the Fourth Proportional to 2,764.35, 4,145.91 and 1,667.21

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Solution

The fourth proportional to 2,764.35, 4,145.91 and 1,667.21 is: 2,500.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764.35 : 4,145.91 = 1,667.21 : x
  2. Step 2: Convert to fraction form
    2,764.35/4,145.91 = 1,667.21/x
  3. Step 3: Cross multiply
    2,764.35x = 4,145.91 × 1,667.21
  4. Step 4: Simplify right side
    2,764.35x = 6,912,081.88
  5. Step 5: Solve for x
    x = 6,912,081.88/2,764.35
  6. Step 6: Final answer
    x = 2,500.44

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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.