Home / 4,923.12-7,378.44-2,149.02

Finding the Fourth Proportional to 4,923.12, 7,378.44 and 2,149.02

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Solution

The fourth proportional to 4,923.12, 7,378.44 and 2,149.02 is: 3,220.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,923.12 : 7,378.44 = 2,149.02 : x
  2. Step 2: Convert to fraction form
    4,923.12/7,378.44 = 2,149.02/x
  3. Step 3: Cross multiply
    4,923.12x = 7,378.44 × 2,149.02
  4. Step 4: Simplify right side
    4,923.12x = 15,856,415.13
  5. Step 5: Solve for x
    x = 15,856,415.13/4,923.12
  6. Step 6: Final answer
    x = 3,220.81

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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.