Home / 3,738.13-5,607.81-1,272.70

Finding the Fourth Proportional to 3,738.13, 5,607.81 and 1,272.70

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Solution

The fourth proportional to 3,738.13, 5,607.81 and 1,272.70 is: 1,909.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,738.13 : 5,607.81 = 1,272.70 : x
  2. Step 2: Convert to fraction form
    3,738.13/5,607.81 = 1,272.70/x
  3. Step 3: Cross multiply
    3,738.13x = 5,607.81 × 1,272.70
  4. Step 4: Simplify right side
    3,738.13x = 7,137,059.79
  5. Step 5: Solve for x
    x = 7,137,059.79/3,738.13
  6. Step 6: Final answer
    x = 1,909.26

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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.