Home / 7,820.36-11,732.94-2,625.80

Finding the Fourth Proportional to 7,820.36, 11,732.94 and 2,625.80

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Solution

The fourth proportional to 7,820.36, 11,732.94 and 2,625.80 is: 3,939.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,820.36 : 11,732.94 = 2,625.80 : x
  2. Step 2: Convert to fraction form
    7,820.36/11,732.94 = 2,625.80/x
  3. Step 3: Cross multiply
    7,820.36x = 11,732.94 × 2,625.80
  4. Step 4: Simplify right side
    7,820.36x = 30,808,353.85
  5. Step 5: Solve for x
    x = 30,808,353.85/7,820.36
  6. Step 6: Final answer
    x = 3,939.51

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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.