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Finding the Fourth Proportional to 6,602.72, 9,903.04 and 2,220.20

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Solution

The fourth proportional to 6,602.72, 9,903.04 and 2,220.20 is: 3,329.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,602.72 : 9,903.04 = 2,220.20 : x
  2. Step 2: Convert to fraction form
    6,602.72/9,903.04 = 2,220.20/x
  3. Step 3: Cross multiply
    6,602.72x = 9,903.04 × 2,220.20
  4. Step 4: Simplify right side
    6,602.72x = 21,986,729.41
  5. Step 5: Solve for x
    x = 21,986,729.41/6,602.72
  6. Step 6: Final answer
    x = 3,329.95

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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.