Home / 5,099.80-7,038.06-2,861.83

Finding the Fourth Proportional to 5,099.80, 7,038.06 and 2,861.83

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Solution

The fourth proportional to 5,099.80, 7,038.06 and 2,861.83 is: 3,949.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,099.80 : 7,038.06 = 2,861.83 : x
  2. Step 2: Convert to fraction form
    5,099.80/7,038.06 = 2,861.83/x
  3. Step 3: Cross multiply
    5,099.80x = 7,038.06 × 2,861.83
  4. Step 4: Simplify right side
    5,099.80x = 20,141,731.25
  5. Step 5: Solve for x
    x = 20,141,731.25/5,099.80
  6. Step 6: Final answer
    x = 3,949.51

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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.