Home / 3,155.56-4,354.28-1,896.43

Finding the Fourth Proportional to 3,155.56, 4,354.28 and 1,896.43

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Solution

The fourth proportional to 3,155.56, 4,354.28 and 1,896.43 is: 2,616.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.56 : 4,354.28 = 1,896.43 : x
  2. Step 2: Convert to fraction form
    3,155.56/4,354.28 = 1,896.43/x
  3. Step 3: Cross multiply
    3,155.56x = 4,354.28 × 1,896.43
  4. Step 4: Simplify right side
    3,155.56x = 8,257,577.74
  5. Step 5: Solve for x
    x = 8,257,577.74/3,155.56
  6. Step 6: Final answer
    x = 2,616.83

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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.