Home / 2,649.38-3,974.75-1,005.03

Finding the Fourth Proportional to 2,649.38, 3,974.75 and 1,005.03

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Solution

The fourth proportional to 2,649.38, 3,974.75 and 1,005.03 is: 1,507.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,649.38 : 3,974.75 = 1,005.03 : x
  2. Step 2: Convert to fraction form
    2,649.38/3,974.75 = 1,005.03/x
  3. Step 3: Cross multiply
    2,649.38x = 3,974.75 × 1,005.03
  4. Step 4: Simplify right side
    2,649.38x = 3,994,750.09
  5. Step 5: Solve for x
    x = 3,994,750.09/2,649.38
  6. Step 6: Final answer
    x = 1,507.80

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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.