Home / 4,170.87-6,255.39-1,249.40

Finding the Fourth Proportional to 4,170.87, 6,255.39 and 1,249.40

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Solution

The fourth proportional to 4,170.87, 6,255.39 and 1,249.40 is: 1,873.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,170.87 : 6,255.39 = 1,249.40 : x
  2. Step 2: Convert to fraction form
    4,170.87/6,255.39 = 1,249.40/x
  3. Step 3: Cross multiply
    4,170.87x = 6,255.39 × 1,249.40
  4. Step 4: Simplify right side
    4,170.87x = 7,815,484.27
  5. Step 5: Solve for x
    x = 7,815,484.27/4,170.87
  6. Step 6: Final answer
    x = 1,873.83

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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.