Home / 3,220.91-4,453.80-2,556.60

Finding the Fourth Proportional to 3,220.91, 4,453.80 and 2,556.60

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Solution

The fourth proportional to 3,220.91, 4,453.80 and 2,556.60 is: 3,535.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.91 : 4,453.80 = 2,556.60 : x
  2. Step 2: Convert to fraction form
    3,220.91/4,453.80 = 2,556.60/x
  3. Step 3: Cross multiply
    3,220.91x = 4,453.80 × 2,556.60
  4. Step 4: Simplify right side
    3,220.91x = 11,386,592.19
  5. Step 5: Solve for x
    x = 11,386,592.19/3,220.91
  6. Step 6: Final answer
    x = 3,535.22

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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.