Home / 2,969.28-4,449.12-2,556.48

Finding the Fourth Proportional to 2,969.28, 4,449.12 and 2,556.48

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Solution

The fourth proportional to 2,969.28, 4,449.12 and 2,556.48 is: 3,830.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,969.28 : 4,449.12 = 2,556.48 : x
  2. Step 2: Convert to fraction form
    2,969.28/4,449.12 = 2,556.48/x
  3. Step 3: Cross multiply
    2,969.28x = 4,449.12 × 2,556.48
  4. Step 4: Simplify right side
    2,969.28x = 11,374,086.30
  5. Step 5: Solve for x
    x = 11,374,086.30/2,969.28
  6. Step 6: Final answer
    x = 3,830.59

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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.