Home / 3,753.20-5,622.60-2,212.40

Finding the Fourth Proportional to 3,753.20, 5,622.60 and 2,212.40

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Solution

The fourth proportional to 3,753.20, 5,622.60 and 2,212.40 is: 3,314.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,753.20 : 5,622.60 = 2,212.40 : x
  2. Step 2: Convert to fraction form
    3,753.20/5,622.60 = 2,212.40/x
  3. Step 3: Cross multiply
    3,753.20x = 5,622.60 × 2,212.40
  4. Step 4: Simplify right side
    3,753.20x = 12,439,440.24
  5. Step 5: Solve for x
    x = 12,439,440.24/3,753.20
  6. Step 6: Final answer
    x = 3,314.36

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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.