Home / 3,057.35-4,220.91-1,939.23

Finding the Fourth Proportional to 3,057.35, 4,220.91 and 1,939.23

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Solution

The fourth proportional to 3,057.35, 4,220.91 and 1,939.23 is: 2,677.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,057.35 : 4,220.91 = 1,939.23 : x
  2. Step 2: Convert to fraction form
    3,057.35/4,220.91 = 1,939.23/x
  3. Step 3: Cross multiply
    3,057.35x = 4,220.91 × 1,939.23
  4. Step 4: Simplify right side
    3,057.35x = 8,185,315.30
  5. Step 5: Solve for x
    x = 8,185,315.30/3,057.35
  6. Step 6: Final answer
    x = 2,677.26

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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.