Home / 2,782.05-3,839.33-1,662.87

Finding the Fourth Proportional to 2,782.05, 3,839.33 and 1,662.87

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Solution

The fourth proportional to 2,782.05, 3,839.33 and 1,662.87 is: 2,294.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.05 : 3,839.33 = 1,662.87 : x
  2. Step 2: Convert to fraction form
    2,782.05/3,839.33 = 1,662.87/x
  3. Step 3: Cross multiply
    2,782.05x = 3,839.33 × 1,662.87
  4. Step 4: Simplify right side
    2,782.05x = 6,384,306.68
  5. Step 5: Solve for x
    x = 6,384,306.68/2,782.05
  6. Step 6: Final answer
    x = 2,294.82

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1.5x scale

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.