Home / 4,997.75-7,489.70-3,145.55

Finding the Fourth Proportional to 4,997.75, 7,489.70 and 3,145.55

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Solution

The fourth proportional to 4,997.75, 7,489.70 and 3,145.55 is: 4,713.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,997.75 : 7,489.70 = 3,145.55 : x
  2. Step 2: Convert to fraction form
    4,997.75/7,489.70 = 3,145.55/x
  3. Step 3: Cross multiply
    4,997.75x = 7,489.70 × 3,145.55
  4. Step 4: Simplify right side
    4,997.75x = 23,559,172.66
  5. Step 5: Solve for x
    x = 23,559,172.66/4,997.75
  6. Step 6: Final answer
    x = 4,713.96

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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.