Home / 3,220.65-4,453.45-2,556.35

Finding the Fourth Proportional to 3,220.65, 4,453.45 and 2,556.35

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Solution

The fourth proportional to 3,220.65, 4,453.45 and 2,556.35 is: 3,534.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.65 : 4,453.45 = 2,556.35 : x
  2. Step 2: Convert to fraction form
    3,220.65/4,453.45 = 2,556.35/x
  3. Step 3: Cross multiply
    3,220.65x = 4,453.45 × 2,556.35
  4. Step 4: Simplify right side
    3,220.65x = 11,384,591.24
  5. Step 5: Solve for x
    x = 11,384,591.24/3,220.65
  6. Step 6: Final answer
    x = 3,534.87

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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.