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Finding the Fourth Proportional to 3,751.77, 5,626.80 and 1,412.02

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Solution

The fourth proportional to 3,751.77, 5,626.80 and 1,412.02 is: 2,117.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,751.77 : 5,626.80 = 1,412.02 : x
  2. Step 2: Convert to fraction form
    3,751.77/5,626.80 = 1,412.02/x
  3. Step 3: Cross multiply
    3,751.77x = 5,626.80 × 1,412.02
  4. Step 4: Simplify right side
    3,751.77x = 7,945,161.17
  5. Step 5: Solve for x
    x = 7,945,161.17/3,751.77
  6. Step 6: Final answer
    x = 2,117.71

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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.