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Finding the Fourth Proportional to 3,777.77, 5,661.84 and 2,135.23

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Solution

The fourth proportional to 3,777.77, 5,661.84 and 2,135.23 is: 3,200.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,777.77 : 5,661.84 = 2,135.23 : x
  2. Step 2: Convert to fraction form
    3,777.77/5,661.84 = 2,135.23/x
  3. Step 3: Cross multiply
    3,777.77x = 5,661.84 × 2,135.23
  4. Step 4: Simplify right side
    3,777.77x = 12,089,330.62
  5. Step 5: Solve for x
    x = 12,089,330.62/3,777.77
  6. Step 6: Final answer
    x = 3,200.12

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1.5x scale

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.