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Finding the Fourth Proportional to 6,899.70, 10,348.10 and 2,220.13

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Solution

The fourth proportional to 6,899.70, 10,348.10 and 2,220.13 is: 3,329.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,899.70 : 10,348.10 = 2,220.13 : x
  2. Step 2: Convert to fraction form
    6,899.70/10,348.10 = 2,220.13/x
  3. Step 3: Cross multiply
    6,899.70x = 10,348.10 × 2,220.13
  4. Step 4: Simplify right side
    6,899.70x = 22,974,127.25
  5. Step 5: Solve for x
    x = 22,974,127.25/6,899.70
  6. Step 6: Final answer
    x = 3,329.73

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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.