Home / 5,184.36-7,778.39-2,221.56

Finding the Fourth Proportional to 5,184.36, 7,778.39 and 2,221.56

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Solution

The fourth proportional to 5,184.36, 7,778.39 and 2,221.56 is: 3,333.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,184.36 : 7,778.39 = 2,221.56 : x
  2. Step 2: Convert to fraction form
    5,184.36/7,778.39 = 2,221.56/x
  3. Step 3: Cross multiply
    5,184.36x = 7,778.39 × 2,221.56
  4. Step 4: Simplify right side
    5,184.36x = 17,280,160.09
  5. Step 5: Solve for x
    x = 17,280,160.09/5,184.36
  6. Step 6: Final answer
    x = 3,333.13

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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.