Home / 3,195.48-4,791.20-1,440.12

Finding the Fourth Proportional to 3,195.48, 4,791.20 and 1,440.12

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Solution

The fourth proportional to 3,195.48, 4,791.20 and 1,440.12 is: 2,159.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,195.48 : 4,791.20 = 1,440.12 : x
  2. Step 2: Convert to fraction form
    3,195.48/4,791.20 = 1,440.12/x
  3. Step 3: Cross multiply
    3,195.48x = 4,791.20 × 1,440.12
  4. Step 4: Simplify right side
    3,195.48x = 6,899,902.94
  5. Step 5: Solve for x
    x = 6,899,902.94/3,195.48
  6. Step 6: Final answer
    x = 2,159.27

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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.