Home / 7,485.27-11,218.93-3,320.57

Finding the Fourth Proportional to 7,485.27, 11,218.93 and 3,320.57

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Solution

The fourth proportional to 7,485.27, 11,218.93 and 3,320.57 is: 4,976.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.27 : 11,218.93 = 3,320.57 : x
  2. Step 2: Convert to fraction form
    7,485.27/11,218.93 = 3,320.57/x
  3. Step 3: Cross multiply
    7,485.27x = 11,218.93 × 3,320.57
  4. Step 4: Simplify right side
    7,485.27x = 37,253,242.39
  5. Step 5: Solve for x
    x = 37,253,242.39/7,485.27
  6. Step 6: Final answer
    x = 4,976.87

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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.