Home / 3,946.60-5,919.90-3,917.80

Finding the Fourth Proportional to 3,946.60, 5,919.90 and 3,917.80

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Solution

The fourth proportional to 3,946.60, 5,919.90 and 3,917.80 is: 5,876.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946.60 : 5,919.90 = 3,917.80 : x
  2. Step 2: Convert to fraction form
    3,946.60/5,919.90 = 3,917.80/x
  3. Step 3: Cross multiply
    3,946.60x = 5,919.90 × 3,917.80
  4. Step 4: Simplify right side
    3,946.60x = 23,192,984.22
  5. Step 5: Solve for x
    x = 23,192,984.22/3,946.60
  6. Step 6: Final answer
    x = 5,876.70

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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.