Home / 4,120.78-5,687.22-2,527.60

Finding the Fourth Proportional to 4,120.78, 5,687.22 and 2,527.60

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Solution

The fourth proportional to 4,120.78, 5,687.22 and 2,527.60 is: 3,488.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.78 : 5,687.22 = 2,527.60 : x
  2. Step 2: Convert to fraction form
    4,120.78/5,687.22 = 2,527.60/x
  3. Step 3: Cross multiply
    4,120.78x = 5,687.22 × 2,527.60
  4. Step 4: Simplify right side
    4,120.78x = 14,375,017.27
  5. Step 5: Solve for x
    x = 14,375,017.27/4,120.78
  6. Step 6: Final answer
    x = 3,488.42

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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.