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Finding the Fourth Proportional to 3,777.66, 5,628.18 and 3,591.78

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Solution

The fourth proportional to 3,777.66, 5,628.18 and 3,591.78 is: 5,351.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,777.66 : 5,628.18 = 3,591.78 : x
  2. Step 2: Convert to fraction form
    3,777.66/5,628.18 = 3,591.78/x
  3. Step 3: Cross multiply
    3,777.66x = 5,628.18 × 3,591.78
  4. Step 4: Simplify right side
    3,777.66x = 20,215,184.36
  5. Step 5: Solve for x
    x = 20,215,184.36/3,777.66
  6. Step 6: Final answer
    x = 5,351.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.