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Finding the Fourth Proportional to 2,999.80, 4,494.84 and 2,270.80

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Solution

The fourth proportional to 2,999.80, 4,494.84 and 2,270.80 is: 3,402.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.80 : 4,494.84 = 2,270.80 : x
  2. Step 2: Convert to fraction form
    2,999.80/4,494.84 = 2,270.80/x
  3. Step 3: Cross multiply
    2,999.80x = 4,494.84 × 2,270.80
  4. Step 4: Simplify right side
    2,999.80x = 10,206,892.55
  5. Step 5: Solve for x
    x = 10,206,892.55/2,999.80
  6. Step 6: Final answer
    x = 3,402.52

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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.