Home / 5,362.20-7,399.80-3,124.56

Finding the Fourth Proportional to 5,362.20, 7,399.80 and 3,124.56

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Solution

The fourth proportional to 5,362.20, 7,399.80 and 3,124.56 is: 4,311.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,362.20 : 7,399.80 = 3,124.56 : x
  2. Step 2: Convert to fraction form
    5,362.20/7,399.80 = 3,124.56/x
  3. Step 3: Cross multiply
    5,362.20x = 7,399.80 × 3,124.56
  4. Step 4: Simplify right side
    5,362.20x = 23,121,119.09
  5. Step 5: Solve for x
    x = 23,121,119.09/5,362.20
  6. Step 6: Final answer
    x = 4,311.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.