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Finding the Fourth Proportional to 3,739.77, 5,128.52 and 3,550.23

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Solution

The fourth proportional to 3,739.77, 5,128.52 and 3,550.23 is: 4,868.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,739.77 : 5,128.52 = 3,550.23 : x
  2. Step 2: Convert to fraction form
    3,739.77/5,128.52 = 3,550.23/x
  3. Step 3: Cross multiply
    3,739.77x = 5,128.52 × 3,550.23
  4. Step 4: Simplify right side
    3,739.77x = 18,207,407.81
  5. Step 5: Solve for x
    x = 18,207,407.81/3,739.77
  6. Step 6: Final answer
    x = 4,868.59

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Find fourth proportional to 3,740.77, 5,129.89 and 3,551.23
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.