Home / 3,782.20-5,642.92-3,366.40

Finding the Fourth Proportional to 3,782.20, 5,642.92 and 3,366.40

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Solution

The fourth proportional to 3,782.20, 5,642.92 and 3,366.40 is: 5,022.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,782.20 : 5,642.92 = 3,366.40 : x
  2. Step 2: Convert to fraction form
    3,782.20/5,642.92 = 3,366.40/x
  3. Step 3: Cross multiply
    3,782.20x = 5,642.92 × 3,366.40
  4. Step 4: Simplify right side
    3,782.20x = 18,996,325.89
  5. Step 5: Solve for x
    x = 18,996,325.89/3,782.20
  6. Step 6: Final answer
    x = 5,022.56

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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.