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Finding the Fourth Proportional to 4,997.80, 7,499.40 and 2,224.90

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Solution

The fourth proportional to 4,997.80, 7,499.40 and 2,224.90 is: 3,338.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,997.80 : 7,499.40 = 2,224.90 : x
  2. Step 2: Convert to fraction form
    4,997.80/7,499.40 = 2,224.90/x
  3. Step 3: Cross multiply
    4,997.80x = 7,499.40 × 2,224.90
  4. Step 4: Simplify right side
    4,997.80x = 16,685,415.06
  5. Step 5: Solve for x
    x = 16,685,415.06/4,997.80
  6. Step 6: Final answer
    x = 3,338.55

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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.