Home / 6,605.56-9,901.96-2,220.63

Finding the Fourth Proportional to 6,605.56, 9,901.96 and 2,220.63

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Solution

The fourth proportional to 6,605.56, 9,901.96 and 2,220.63 is: 3,328.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,605.56 : 9,901.96 = 2,220.63 : x
  2. Step 2: Convert to fraction form
    6,605.56/9,901.96 = 2,220.63/x
  3. Step 3: Cross multiply
    6,605.56x = 9,901.96 × 2,220.63
  4. Step 4: Simplify right side
    6,605.56x = 21,988,546.75
  5. Step 5: Solve for x
    x = 21,988,546.75/6,605.56
  6. Step 6: Final answer
    x = 3,328.79

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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.