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Finding the Fourth Proportional to 5,899.80, 8,849.70 and 3,307.80

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Solution

The fourth proportional to 5,899.80, 8,849.70 and 3,307.80 is: 4,961.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,899.80 : 8,849.70 = 3,307.80 : x
  2. Step 2: Convert to fraction form
    5,899.80/8,849.70 = 3,307.80/x
  3. Step 3: Cross multiply
    5,899.80x = 8,849.70 × 3,307.80
  4. Step 4: Simplify right side
    5,899.80x = 29,273,037.66
  5. Step 5: Solve for x
    x = 29,273,037.66/5,899.80
  6. Step 6: Final answer
    x = 4,961.70

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Similar ratio
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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.