Home / 2,512.35-3,770.82-1,280.63

Finding the Fourth Proportional to 2,512.35, 3,770.82 and 1,280.63

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Solution

The fourth proportional to 2,512.35, 3,770.82 and 1,280.63 is: 1,922.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,512.35 : 3,770.82 = 1,280.63 : x
  2. Step 2: Convert to fraction form
    2,512.35/3,770.82 = 1,280.63/x
  3. Step 3: Cross multiply
    2,512.35x = 3,770.82 × 1,280.63
  4. Step 4: Simplify right side
    2,512.35x = 4,829,006.36
  5. Step 5: Solve for x
    x = 4,829,006.36/2,512.35
  6. Step 6: Final answer
    x = 1,922.11

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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.