Home / 3,966.85-5,472.41-2,788.62

Finding the Fourth Proportional to 3,966.85, 5,472.41 and 2,788.62

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Solution

The fourth proportional to 3,966.85, 5,472.41 and 2,788.62 is: 3,847.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,966.85 : 5,472.41 = 2,788.62 : x
  2. Step 2: Convert to fraction form
    3,966.85/5,472.41 = 2,788.62/x
  3. Step 3: Cross multiply
    3,966.85x = 5,472.41 × 2,788.62
  4. Step 4: Simplify right side
    3,966.85x = 15,260,471.97
  5. Step 5: Solve for x
    x = 15,260,471.97/3,966.85
  6. Step 6: Final answer
    x = 3,847.00

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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.