Home / 3,982.24-5,973.41-1,385.20

Finding the Fourth Proportional to 3,982.24, 5,973.41 and 1,385.20

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Solution

The fourth proportional to 3,982.24, 5,973.41 and 1,385.20 is: 2,077.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.24 : 5,973.41 = 1,385.20 : x
  2. Step 2: Convert to fraction form
    3,982.24/5,973.41 = 1,385.20/x
  3. Step 3: Cross multiply
    3,982.24x = 5,973.41 × 1,385.20
  4. Step 4: Simplify right side
    3,982.24x = 8,274,367.53
  5. Step 5: Solve for x
    x = 8,274,367.53/3,982.24
  6. Step 6: Final answer
    x = 2,077.82

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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.