Home / 2,814.76-3,884.60-1,635.75

Finding the Fourth Proportional to 2,814.76, 3,884.60 and 1,635.75

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Solution

The fourth proportional to 2,814.76, 3,884.60 and 1,635.75 is: 2,257.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.76 : 3,884.60 = 1,635.75 : x
  2. Step 2: Convert to fraction form
    2,814.76/3,884.60 = 1,635.75/x
  3. Step 3: Cross multiply
    2,814.76x = 3,884.60 × 1,635.75
  4. Step 4: Simplify right side
    2,814.76x = 6,354,238.54
  5. Step 5: Solve for x
    x = 6,354,238.54/2,814.76
  6. Step 6: Final answer
    x = 2,257.47

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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.