Home / 3,984.26-5,498.01-2,215.80

Finding the Fourth Proportional to 3,984.26, 5,498.01 and 2,215.80

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Solution

The fourth proportional to 3,984.26, 5,498.01 and 2,215.80 is: 3,057.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.26 : 5,498.01 = 2,215.80 : x
  2. Step 2: Convert to fraction form
    3,984.26/5,498.01 = 2,215.80/x
  3. Step 3: Cross multiply
    3,984.26x = 5,498.01 × 2,215.80
  4. Step 4: Simplify right side
    3,984.26x = 12,182,490.56
  5. Step 5: Solve for x
    x = 12,182,490.56/3,984.26
  6. Step 6: Final answer
    x = 3,057.66

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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.