Home / 6,381.36-9,571.20-2,220.48

Finding the Fourth Proportional to 6,381.36, 9,571.20 and 2,220.48

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Solution

The fourth proportional to 6,381.36, 9,571.20 and 2,220.48 is: 3,330.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,381.36 : 9,571.20 = 2,220.48 : x
  2. Step 2: Convert to fraction form
    6,381.36/9,571.20 = 2,220.48/x
  3. Step 3: Cross multiply
    6,381.36x = 9,571.20 × 2,220.48
  4. Step 4: Simplify right side
    6,381.36x = 21,252,658.18
  5. Step 5: Solve for x
    x = 21,252,658.18/6,381.36
  6. Step 6: Final answer
    x = 3,330.43

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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.