Home / 6,605.03-9,115.20-3,620.81

Finding the Fourth Proportional to 6,605.03, 9,115.20 and 3,620.81

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Solution

The fourth proportional to 6,605.03, 9,115.20 and 3,620.81 is: 4,996.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,605.03 : 9,115.20 = 3,620.81 : x
  2. Step 2: Convert to fraction form
    6,605.03/9,115.20 = 3,620.81/x
  3. Step 3: Cross multiply
    6,605.03x = 9,115.20 × 3,620.81
  4. Step 4: Simplify right side
    6,605.03x = 33,004,430.10
  5. Step 5: Solve for x
    x = 33,004,430.10/6,605.03
  6. Step 6: Final answer
    x = 4,996.86

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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.