Home / 4,122.87-5,687.40-2,441.40

Finding the Fourth Proportional to 4,122.87, 5,687.40 and 2,441.40

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Solution

The fourth proportional to 4,122.87, 5,687.40 and 2,441.40 is: 3,367.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,122.87 : 5,687.40 = 2,441.40 : x
  2. Step 2: Convert to fraction form
    4,122.87/5,687.40 = 2,441.40/x
  3. Step 3: Cross multiply
    4,122.87x = 5,687.40 × 2,441.40
  4. Step 4: Simplify right side
    4,122.87x = 13,885,218.36
  5. Step 5: Solve for x
    x = 13,885,218.36/4,122.87
  6. Step 6: Final answer
    x = 3,367.85

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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.