Home / 6,601.85-9,903.68-2,220.56

Finding the Fourth Proportional to 6,601.85, 9,903.68 and 2,220.56

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Solution

The fourth proportional to 6,601.85, 9,903.68 and 2,220.56 is: 3,331.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,601.85 : 9,903.68 = 2,220.56 : x
  2. Step 2: Convert to fraction form
    6,601.85/9,903.68 = 2,220.56/x
  3. Step 3: Cross multiply
    6,601.85x = 9,903.68 × 2,220.56
  4. Step 4: Simplify right side
    6,601.85x = 21,991,715.66
  5. Step 5: Solve for x
    x = 21,991,715.66/6,601.85
  6. Step 6: Final answer
    x = 3,331.14

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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.