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Finding the Fourth Proportional to 7,203.30, 9,940.94 and 4,219.37

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Solution

The fourth proportional to 7,203.30, 9,940.94 and 4,219.37 is: 5,822.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,203.30 : 9,940.94 = 4,219.37 : x
  2. Step 2: Convert to fraction form
    7,203.30/9,940.94 = 4,219.37/x
  3. Step 3: Cross multiply
    7,203.30x = 9,940.94 × 4,219.37
  4. Step 4: Simplify right side
    7,203.30x = 41,944,433.21
  5. Step 5: Solve for x
    x = 41,944,433.21/7,203.30
  6. Step 6: Final answer
    x = 5,822.95

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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.