Home / 5,193.39-7,790.10-2,115.39

Finding the Fourth Proportional to 5,193.39, 7,790.10 and 2,115.39

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Solution

The fourth proportional to 5,193.39, 7,790.10 and 2,115.39 is: 3,173.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,193.39 : 7,790.10 = 2,115.39 : x
  2. Step 2: Convert to fraction form
    5,193.39/7,790.10 = 2,115.39/x
  3. Step 3: Cross multiply
    5,193.39x = 7,790.10 × 2,115.39
  4. Step 4: Simplify right side
    5,193.39x = 16,479,099.64
  5. Step 5: Solve for x
    x = 16,479,099.64/5,193.39
  6. Step 6: Final answer
    x = 3,173.09

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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.