Home / 5,099.91-7,037.55-2,861.79

Finding the Fourth Proportional to 5,099.91, 7,037.55 and 2,861.79

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Solution

The fourth proportional to 5,099.91, 7,037.55 and 2,861.79 is: 3,949.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,099.91 : 7,037.55 = 2,861.79 : x
  2. Step 2: Convert to fraction form
    5,099.91/7,037.55 = 2,861.79/x
  3. Step 3: Cross multiply
    5,099.91x = 7,037.55 × 2,861.79
  4. Step 4: Simplify right side
    5,099.91x = 20,139,990.21
  5. Step 5: Solve for x
    x = 20,139,990.21/5,099.91
  6. Step 6: Final answer
    x = 3,949.09

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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.