Home / 7,204.20-9,939.67-4,220.16

Finding the Fourth Proportional to 7,204.20, 9,939.67 and 4,220.16

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Solution

The fourth proportional to 7,204.20, 9,939.67 and 4,220.16 is: 5,822.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,204.20 : 9,939.67 = 4,220.16 : x
  2. Step 2: Convert to fraction form
    7,204.20/9,939.67 = 4,220.16/x
  3. Step 3: Cross multiply
    7,204.20x = 9,939.67 × 4,220.16
  4. Step 4: Simplify right side
    7,204.20x = 41,946,997.75
  5. Step 5: Solve for x
    x = 41,946,997.75/7,204.20
  6. Step 6: Final answer
    x = 5,822.58

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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.