Home / 5,131.08-7,695-2,208.60

Finding the Fourth Proportional to 5,131.08, 7,695 and 2,208.60

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Solution

The fourth proportional to 5,131.08, 7,695 and 2,208.60 is: 3,312.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131.08 : 7,695 = 2,208.60 : x
  2. Step 2: Convert to fraction form
    5,131.08/7,695 = 2,208.60/x
  3. Step 3: Cross multiply
    5,131.08x = 7,695 × 2,208.60
  4. Step 4: Simplify right side
    5,131.08x = 16,995,177
  5. Step 5: Solve for x
    x = 16,995,177/5,131.08
  6. Step 6: Final answer
    x = 3,312.20

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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.