Home / 2,037.22-2,811.60-1,912.12

Finding the Fourth Proportional to 2,037.22, 2,811.60 and 1,912.12

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Solution

The fourth proportional to 2,037.22, 2,811.60 and 1,912.12 is: 2,638.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,037.22 : 2,811.60 = 1,912.12 : x
  2. Step 2: Convert to fraction form
    2,037.22/2,811.60 = 1,912.12/x
  3. Step 3: Cross multiply
    2,037.22x = 2,811.60 × 1,912.12
  4. Step 4: Simplify right side
    2,037.22x = 5,376,116.59
  5. Step 5: Solve for x
    x = 5,376,116.59/2,037.22
  6. Step 6: Final answer
    x = 2,638.95

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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.