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Finding the Fourth Proportional to 3,384.66, 5,076.98 and 3,379.80

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Solution

The fourth proportional to 3,384.66, 5,076.98 and 3,379.80 is: 5,069.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,384.66 : 5,076.98 = 3,379.80 : x
  2. Step 2: Convert to fraction form
    3,384.66/5,076.98 = 3,379.80/x
  3. Step 3: Cross multiply
    3,384.66x = 5,076.98 × 3,379.80
  4. Step 4: Simplify right side
    3,384.66x = 17,159,177.00
  5. Step 5: Solve for x
    x = 17,159,177.00/3,384.66
  6. Step 6: Final answer
    x = 5,069.69

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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.