Home / 3,192.20-4,791.90-1,894.40

Finding the Fourth Proportional to 3,192.20, 4,791.90 and 1,894.40

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Solution

The fourth proportional to 3,192.20, 4,791.90 and 1,894.40 is: 2,843.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,192.20 : 4,791.90 = 1,894.40 : x
  2. Step 2: Convert to fraction form
    3,192.20/4,791.90 = 1,894.40/x
  3. Step 3: Cross multiply
    3,192.20x = 4,791.90 × 1,894.40
  4. Step 4: Simplify right side
    3,192.20x = 9,077,775.36
  5. Step 5: Solve for x
    x = 9,077,775.36/3,192.20
  6. Step 6: Final answer
    x = 2,843.74

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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.