Home / 5,102.37-7,649.96-1,979.78

Finding the Fourth Proportional to 5,102.37, 7,649.96 and 1,979.78

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Solution

The fourth proportional to 5,102.37, 7,649.96 and 1,979.78 is: 2,968.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,102.37 : 7,649.96 = 1,979.78 : x
  2. Step 2: Convert to fraction form
    5,102.37/7,649.96 = 1,979.78/x
  3. Step 3: Cross multiply
    5,102.37x = 7,649.96 × 1,979.78
  4. Step 4: Simplify right side
    5,102.37x = 15,145,189.66
  5. Step 5: Solve for x
    x = 15,145,189.66/5,102.37
  6. Step 6: Final answer
    x = 2,968.27

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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.