Home / 2,771.30-3,829.25-2,216.35

Finding the Fourth Proportional to 2,771.30, 3,829.25 and 2,216.35

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Solution

The fourth proportional to 2,771.30, 3,829.25 and 2,216.35 is: 3,062.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.30 : 3,829.25 = 2,216.35 : x
  2. Step 2: Convert to fraction form
    2,771.30/3,829.25 = 2,216.35/x
  3. Step 3: Cross multiply
    2,771.30x = 3,829.25 × 2,216.35
  4. Step 4: Simplify right side
    2,771.30x = 8,486,958.24
  5. Step 5: Solve for x
    x = 8,486,958.24/2,771.30
  6. Step 6: Final answer
    x = 3,062.45

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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.