Home / 4,249.90-6,375.71-1,288.54

Finding the Fourth Proportional to 4,249.90, 6,375.71 and 1,288.54

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Solution

The fourth proportional to 4,249.90, 6,375.71 and 1,288.54 is: 1,933.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,249.90 : 6,375.71 = 1,288.54 : x
  2. Step 2: Convert to fraction form
    4,249.90/6,375.71 = 1,288.54/x
  3. Step 3: Cross multiply
    4,249.90x = 6,375.71 × 1,288.54
  4. Step 4: Simplify right side
    4,249.90x = 8,215,368.55
  5. Step 5: Solve for x
    x = 8,215,368.55/4,249.90
  6. Step 6: Final answer
    x = 1,933.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.