Home / 2,531.49-3,800.76-1,299.75

Finding the Fourth Proportional to 2,531.49, 3,800.76 and 1,299.75

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Solution

The fourth proportional to 2,531.49, 3,800.76 and 1,299.75 is: 1,951.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,531.49 : 3,800.76 = 1,299.75 : x
  2. Step 2: Convert to fraction form
    2,531.49/3,800.76 = 1,299.75/x
  3. Step 3: Cross multiply
    2,531.49x = 3,800.76 × 1,299.75
  4. Step 4: Simplify right side
    2,531.49x = 4,940,037.81
  5. Step 5: Solve for x
    x = 4,940,037.81/2,531.49
  6. Step 6: Final answer
    x = 1,951.43

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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.