Home / 4,921.70-7,378.23-2,327.78

Finding the Fourth Proportional to 4,921.70, 7,378.23 and 2,327.78

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Solution

The fourth proportional to 4,921.70, 7,378.23 and 2,327.78 is: 3,489.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.70 : 7,378.23 = 2,327.78 : x
  2. Step 2: Convert to fraction form
    4,921.70/7,378.23 = 2,327.78/x
  3. Step 3: Cross multiply
    4,921.70x = 7,378.23 × 2,327.78
  4. Step 4: Simplify right side
    4,921.70x = 17,174,896.23
  5. Step 5: Solve for x
    x = 17,174,896.23/4,921.70
  6. Step 6: Final answer
    x = 3,489.63

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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.