Home / 4,147.90-5,724.89-2,380.66

Finding the Fourth Proportional to 4,147.90, 5,724.89 and 2,380.66

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Solution

The fourth proportional to 4,147.90, 5,724.89 and 2,380.66 is: 3,285.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,147.90 : 5,724.89 = 2,380.66 : x
  2. Step 2: Convert to fraction form
    4,147.90/5,724.89 = 2,380.66/x
  3. Step 3: Cross multiply
    4,147.90x = 5,724.89 × 2,380.66
  4. Step 4: Simplify right side
    4,147.90x = 13,629,004.72
  5. Step 5: Solve for x
    x = 13,629,004.72/4,147.90
  6. Step 6: Final answer
    x = 3,285.76

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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.