Home / 5,715.78-8,573.34-1,819.68

Finding the Fourth Proportional to 5,715.78, 8,573.34 and 1,819.68

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Solution

The fourth proportional to 5,715.78, 8,573.34 and 1,819.68 is: 2,729.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,715.78 : 8,573.34 = 1,819.68 : x
  2. Step 2: Convert to fraction form
    5,715.78/8,573.34 = 1,819.68/x
  3. Step 3: Cross multiply
    5,715.78x = 8,573.34 × 1,819.68
  4. Step 4: Simplify right side
    5,715.78x = 15,600,735.33
  5. Step 5: Solve for x
    x = 15,600,735.33/5,715.78
  6. Step 6: Final answer
    x = 2,729.41

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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.