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Finding the Fourth Proportional to 7,182.98, 10,763.92 and 3,620.22

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Solution

The fourth proportional to 7,182.98, 10,763.92 and 3,620.22 is: 5,425.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182.98 : 10,763.92 = 3,620.22 : x
  2. Step 2: Convert to fraction form
    7,182.98/10,763.92 = 3,620.22/x
  3. Step 3: Cross multiply
    7,182.98x = 10,763.92 × 3,620.22
  4. Step 4: Simplify right side
    7,182.98x = 38,967,758.46
  5. Step 5: Solve for x
    x = 38,967,758.46/7,182.98
  6. Step 6: Final answer
    x = 5,425.01

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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.