Home / 7,223.50-10,830.39-3,325.78

Finding the Fourth Proportional to 7,223.50, 10,830.39 and 3,325.78

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Solution

The fourth proportional to 7,223.50, 10,830.39 and 3,325.78 is: 4,986.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,223.50 : 10,830.39 = 3,325.78 : x
  2. Step 2: Convert to fraction form
    7,223.50/10,830.39 = 3,325.78/x
  3. Step 3: Cross multiply
    7,223.50x = 10,830.39 × 3,325.78
  4. Step 4: Simplify right side
    7,223.50x = 36,019,494.45
  5. Step 5: Solve for x
    x = 36,019,494.45/7,223.50
  6. Step 6: Final answer
    x = 4,986.43

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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.