Home / 4,220.80-6,331.24-2,769.16

Finding the Fourth Proportional to 4,220.80, 6,331.24 and 2,769.16

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Solution

The fourth proportional to 4,220.80, 6,331.24 and 2,769.16 is: 4,153.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.80 : 6,331.24 = 2,769.16 : x
  2. Step 2: Convert to fraction form
    4,220.80/6,331.24 = 2,769.16/x
  3. Step 3: Cross multiply
    4,220.80x = 6,331.24 × 2,769.16
  4. Step 4: Simplify right side
    4,220.80x = 17,532,216.56
  5. Step 5: Solve for x
    x = 17,532,216.56/4,220.80
  6. Step 6: Final answer
    x = 4,153.77

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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.