Home / 7,620.72-11,432.51-3,461.02

Finding the Fourth Proportional to 7,620.72, 11,432.51 and 3,461.02

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Solution

The fourth proportional to 7,620.72, 11,432.51 and 3,461.02 is: 5,192.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.72 : 11,432.51 = 3,461.02 : x
  2. Step 2: Convert to fraction form
    7,620.72/11,432.51 = 3,461.02/x
  3. Step 3: Cross multiply
    7,620.72x = 11,432.51 × 3,461.02
  4. Step 4: Simplify right side
    7,620.72x = 39,568,112.85
  5. Step 5: Solve for x
    x = 39,568,112.85/7,620.72
  6. Step 6: Final answer
    x = 5,192.18

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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.