Home / 3,220.70-4,441.80-2,556.50

Finding the Fourth Proportional to 3,220.70, 4,441.80 and 2,556.50

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Solution

The fourth proportional to 3,220.70, 4,441.80 and 2,556.50 is: 3,525.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.70 : 4,441.80 = 2,556.50 : x
  2. Step 2: Convert to fraction form
    3,220.70/4,441.80 = 2,556.50/x
  3. Step 3: Cross multiply
    3,220.70x = 4,441.80 × 2,556.50
  4. Step 4: Simplify right side
    3,220.70x = 11,355,461.70
  5. Step 5: Solve for x
    x = 11,355,461.70/3,220.70
  6. Step 6: Final answer
    x = 3,525.77

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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.