Home / 2,813.63-3,882.83-1,634.76

Finding the Fourth Proportional to 2,813.63, 3,882.83 and 1,634.76

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Solution

The fourth proportional to 2,813.63, 3,882.83 and 1,634.76 is: 2,255.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.63 : 3,882.83 = 1,634.76 : x
  2. Step 2: Convert to fraction form
    2,813.63/3,882.83 = 1,634.76/x
  3. Step 3: Cross multiply
    2,813.63x = 3,882.83 × 1,634.76
  4. Step 4: Simplify right side
    2,813.63x = 6,347,487.00
  5. Step 5: Solve for x
    x = 6,347,487.00/2,813.63
  6. Step 6: Final answer
    x = 2,255.98

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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.