Home / 3,556.68-5,336.56-1,911.30

Finding the Fourth Proportional to 3,556.68, 5,336.56 and 1,911.30

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Solution

The fourth proportional to 3,556.68, 5,336.56 and 1,911.30 is: 2,867.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,556.68 : 5,336.56 = 1,911.30 : x
  2. Step 2: Convert to fraction form
    3,556.68/5,336.56 = 1,911.30/x
  3. Step 3: Cross multiply
    3,556.68x = 5,336.56 × 1,911.30
  4. Step 4: Simplify right side
    3,556.68x = 10,199,767.13
  5. Step 5: Solve for x
    x = 10,199,767.13/3,556.68
  6. Step 6: Final answer
    x = 2,867.78

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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.