Home / 3,790.74-5,231.63-2,220.15

Finding the Fourth Proportional to 3,790.74, 5,231.63 and 2,220.15

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Solution

The fourth proportional to 3,790.74, 5,231.63 and 2,220.15 is: 3,064.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790.74 : 5,231.63 = 2,220.15 : x
  2. Step 2: Convert to fraction form
    3,790.74/5,231.63 = 2,220.15/x
  3. Step 3: Cross multiply
    3,790.74x = 5,231.63 × 2,220.15
  4. Step 4: Simplify right side
    3,790.74x = 11,614,992.24
  5. Step 5: Solve for x
    x = 11,614,992.24/3,790.74
  6. Step 6: Final answer
    x = 3,064.04

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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.