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Finding the Fourth Proportional to 3,394.90, 5,092.02 and 2,807.60

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Solution

The fourth proportional to 3,394.90, 5,092.02 and 2,807.60 is: 4,211.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,394.90 : 5,092.02 = 2,807.60 : x
  2. Step 2: Convert to fraction form
    3,394.90/5,092.02 = 2,807.60/x
  3. Step 3: Cross multiply
    3,394.90x = 5,092.02 × 2,807.60
  4. Step 4: Simplify right side
    3,394.90x = 14,296,355.35
  5. Step 5: Solve for x
    x = 14,296,355.35/3,394.90
  6. Step 6: Final answer
    x = 4,211.13

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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.