Home / 7,620.56-11,434.92-2,943.79

Finding the Fourth Proportional to 7,620.56, 11,434.92 and 2,943.79

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Solution

The fourth proportional to 7,620.56, 11,434.92 and 2,943.79 is: 4,417.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.56 : 11,434.92 = 2,943.79 : x
  2. Step 2: Convert to fraction form
    7,620.56/11,434.92 = 2,943.79/x
  3. Step 3: Cross multiply
    7,620.56x = 11,434.92 × 2,943.79
  4. Step 4: Simplify right side
    7,620.56x = 33,661,974.56
  5. Step 5: Solve for x
    x = 33,661,974.56/7,620.56
  6. Step 6: Final answer
    x = 4,417.26

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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.