Home / 3,472.16-4,791.46-1,980.56

Finding the Fourth Proportional to 3,472.16, 4,791.46 and 1,980.56

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Solution

The fourth proportional to 3,472.16, 4,791.46 and 1,980.56 is: 2,733.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,472.16 : 4,791.46 = 1,980.56 : x
  2. Step 2: Convert to fraction form
    3,472.16/4,791.46 = 1,980.56/x
  3. Step 3: Cross multiply
    3,472.16x = 4,791.46 × 1,980.56
  4. Step 4: Simplify right side
    3,472.16x = 9,489,745.11
  5. Step 5: Solve for x
    x = 9,489,745.11/3,472.16
  6. Step 6: Final answer
    x = 2,733.10

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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.