Home / 4,213.72-5,819.34-2,642.68

Finding the Fourth Proportional to 4,213.72, 5,819.34 and 2,642.68

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Solution

The fourth proportional to 4,213.72, 5,819.34 and 2,642.68 is: 3,649.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,213.72 : 5,819.34 = 2,642.68 : x
  2. Step 2: Convert to fraction form
    4,213.72/5,819.34 = 2,642.68/x
  3. Step 3: Cross multiply
    4,213.72x = 5,819.34 × 2,642.68
  4. Step 4: Simplify right side
    4,213.72x = 15,378,653.43
  5. Step 5: Solve for x
    x = 15,378,653.43/4,213.72
  6. Step 6: Final answer
    x = 3,649.66

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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.