Home / 5,910.39-8,103.50-5,805.09

Finding the Fourth Proportional to 5,910.39, 8,103.50 and 5,805.09

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Solution

The fourth proportional to 5,910.39, 8,103.50 and 5,805.09 is: 7,959.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,910.39 : 8,103.50 = 5,805.09 : x
  2. Step 2: Convert to fraction form
    5,910.39/8,103.50 = 5,805.09/x
  3. Step 3: Cross multiply
    5,910.39x = 8,103.50 × 5,805.09
  4. Step 4: Simplify right side
    5,910.39x = 47,041,517.79
  5. Step 5: Solve for x
    x = 47,041,517.79/5,910.39
  6. Step 6: Final answer
    x = 7,959.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.