Home / 5,213.43-7,819.83-2,291.76

Finding the Fourth Proportional to 5,213.43, 7,819.83 and 2,291.76

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Solution

The fourth proportional to 5,213.43, 7,819.83 and 2,291.76 is: 3,437.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.43 : 7,819.83 = 2,291.76 : x
  2. Step 2: Convert to fraction form
    5,213.43/7,819.83 = 2,291.76/x
  3. Step 3: Cross multiply
    5,213.43x = 7,819.83 × 2,291.76
  4. Step 4: Simplify right side
    5,213.43x = 17,921,173.60
  5. Step 5: Solve for x
    x = 17,921,173.60/5,213.43
  6. Step 6: Final answer
    x = 3,437.50

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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.