Home / 3,192.36-4,407.60-2,855.20

Finding the Fourth Proportional to 3,192.36, 4,407.60 and 2,855.20

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Solution

The fourth proportional to 3,192.36, 4,407.60 and 2,855.20 is: 3,942.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,192.36 : 4,407.60 = 2,855.20 : x
  2. Step 2: Convert to fraction form
    3,192.36/4,407.60 = 2,855.20/x
  3. Step 3: Cross multiply
    3,192.36x = 4,407.60 × 2,855.20
  4. Step 4: Simplify right side
    3,192.36x = 12,584,579.52
  5. Step 5: Solve for x
    x = 12,584,579.52/3,192.36
  6. Step 6: Final answer
    x = 3,942.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.