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Finding the Fourth Proportional to 3,220.44, 4,820.88 and 2,977.44

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Solution

The fourth proportional to 3,220.44, 4,820.88 and 2,977.44 is: 4,457.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.44 : 4,820.88 = 2,977.44 : x
  2. Step 2: Convert to fraction form
    3,220.44/4,820.88 = 2,977.44/x
  3. Step 3: Cross multiply
    3,220.44x = 4,820.88 × 2,977.44
  4. Step 4: Simplify right side
    3,220.44x = 14,353,880.95
  5. Step 5: Solve for x
    x = 14,353,880.95/3,220.44
  6. Step 6: Final answer
    x = 4,457.12

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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.