Home / 5,919.72-8,880.78-2,221.88

Finding the Fourth Proportional to 5,919.72, 8,880.78 and 2,221.88

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Solution

The fourth proportional to 5,919.72, 8,880.78 and 2,221.88 is: 3,333.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,919.72 : 8,880.78 = 2,221.88 : x
  2. Step 2: Convert to fraction form
    5,919.72/8,880.78 = 2,221.88/x
  3. Step 3: Cross multiply
    5,919.72x = 8,880.78 × 2,221.88
  4. Step 4: Simplify right side
    5,919.72x = 19,732,027.47
  5. Step 5: Solve for x
    x = 19,732,027.47/5,919.72
  6. Step 6: Final answer
    x = 3,333.27

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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.