Home / 3,758.28-5,638.36-1,418.28

Finding the Fourth Proportional to 3,758.28, 5,638.36 and 1,418.28

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Solution

The fourth proportional to 3,758.28, 5,638.36 and 1,418.28 is: 2,127.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,758.28 : 5,638.36 = 1,418.28 : x
  2. Step 2: Convert to fraction form
    3,758.28/5,638.36 = 1,418.28/x
  3. Step 3: Cross multiply
    3,758.28x = 5,638.36 × 1,418.28
  4. Step 4: Simplify right side
    3,758.28x = 7,996,773.22
  5. Step 5: Solve for x
    x = 7,996,773.22/3,758.28
  6. Step 6: Final answer
    x = 2,127.77

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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.