Home / 2,939.40-4,408.14-1,090.44

Finding the Fourth Proportional to 2,939.40, 4,408.14 and 1,090.44

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Solution

The fourth proportional to 2,939.40, 4,408.14 and 1,090.44 is: 1,635.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.40 : 4,408.14 = 1,090.44 : x
  2. Step 2: Convert to fraction form
    2,939.40/4,408.14 = 1,090.44/x
  3. Step 3: Cross multiply
    2,939.40x = 4,408.14 × 1,090.44
  4. Step 4: Simplify right side
    2,939.40x = 4,806,812.18
  5. Step 5: Solve for x
    x = 4,806,812.18/2,939.40
  6. Step 6: Final answer
    x = 1,635.30

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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.