Home / 3,124.50-4,311.81-1,727.38

Finding the Fourth Proportional to 3,124.50, 4,311.81 and 1,727.38

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Solution

The fourth proportional to 3,124.50, 4,311.81 and 1,727.38 is: 2,383.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.50 : 4,311.81 = 1,727.38 : x
  2. Step 2: Convert to fraction form
    3,124.50/4,311.81 = 1,727.38/x
  3. Step 3: Cross multiply
    3,124.50x = 4,311.81 × 1,727.38
  4. Step 4: Simplify right side
    3,124.50x = 7,448,134.36
  5. Step 5: Solve for x
    x = 7,448,134.36/3,124.50
  6. Step 6: Final answer
    x = 2,383.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.