Home / 3,738.28-5,607.69-1,272.10

Finding the Fourth Proportional to 3,738.28, 5,607.69 and 1,272.10

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Solution

The fourth proportional to 3,738.28, 5,607.69 and 1,272.10 is: 1,908.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,738.28 : 5,607.69 = 1,272.10 : x
  2. Step 2: Convert to fraction form
    3,738.28/5,607.69 = 1,272.10/x
  3. Step 3: Cross multiply
    3,738.28x = 5,607.69 × 1,272.10
  4. Step 4: Simplify right side
    3,738.28x = 7,133,542.45
  5. Step 5: Solve for x
    x = 7,133,542.45/3,738.28
  6. Step 6: Final answer
    x = 1,908.24

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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.