Home / 3,827.40-5,744.70-3,280.20

Finding the Fourth Proportional to 3,827.40, 5,744.70 and 3,280.20

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Solution

The fourth proportional to 3,827.40, 5,744.70 and 3,280.20 is: 4,923.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,827.40 : 5,744.70 = 3,280.20 : x
  2. Step 2: Convert to fraction form
    3,827.40/5,744.70 = 3,280.20/x
  3. Step 3: Cross multiply
    3,827.40x = 5,744.70 × 3,280.20
  4. Step 4: Simplify right side
    3,827.40x = 18,843,764.94
  5. Step 5: Solve for x
    x = 18,843,764.94/3,827.40
  6. Step 6: Final answer
    x = 4,923.39

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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.