Home / 3,220.30-4,441.95-2,211.52

Finding the Fourth Proportional to 3,220.30, 4,441.95 and 2,211.52

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Solution

The fourth proportional to 3,220.30, 4,441.95 and 2,211.52 is: 3,050.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.30 : 4,441.95 = 2,211.52 : x
  2. Step 2: Convert to fraction form
    3,220.30/4,441.95 = 2,211.52/x
  3. Step 3: Cross multiply
    3,220.30x = 4,441.95 × 2,211.52
  4. Step 4: Simplify right side
    3,220.30x = 9,823,461.26
  5. Step 5: Solve for x
    x = 9,823,461.26/3,220.30
  6. Step 6: Final answer
    x = 3,050.48

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Half scale
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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.