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Finding the Fourth Proportional to 6,449.69, 8,900.57 and 3,798.73

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Solution

The fourth proportional to 6,449.69, 8,900.57 and 3,798.73 is: 5,242.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,449.69 : 8,900.57 = 3,798.73 : x
  2. Step 2: Convert to fraction form
    6,449.69/8,900.57 = 3,798.73/x
  3. Step 3: Cross multiply
    6,449.69x = 8,900.57 × 3,798.73
  4. Step 4: Simplify right side
    6,449.69x = 33,810,862.28
  5. Step 5: Solve for x
    x = 33,810,862.28/6,449.69
  6. Step 6: Final answer
    x = 5,242.25

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.