Home / 7,200.20-9,932.87-4,214.18

Finding the Fourth Proportional to 7,200.20, 9,932.87 and 4,214.18

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Solution

The fourth proportional to 7,200.20, 9,932.87 and 4,214.18 is: 5,813.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,200.20 : 9,932.87 = 4,214.18 : x
  2. Step 2: Convert to fraction form
    7,200.20/9,932.87 = 4,214.18/x
  3. Step 3: Cross multiply
    7,200.20x = 9,932.87 × 4,214.18
  4. Step 4: Simplify right side
    7,200.20x = 41,858,902.10
  5. Step 5: Solve for x
    x = 41,858,902.10/7,200.20
  6. Step 6: Final answer
    x = 5,813.57

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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.