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Finding the Fourth Proportional to 3,793.43, 5,686.40 and 1,816.77

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Solution

The fourth proportional to 3,793.43, 5,686.40 and 1,816.77 is: 2,723.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,793.43 : 5,686.40 = 1,816.77 : x
  2. Step 2: Convert to fraction form
    3,793.43/5,686.40 = 1,816.77/x
  3. Step 3: Cross multiply
    3,793.43x = 5,686.40 × 1,816.77
  4. Step 4: Simplify right side
    3,793.43x = 10,330,871.84
  5. Step 5: Solve for x
    x = 10,330,871.84/3,793.43
  6. Step 6: Final answer
    x = 2,723.36

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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.