Home / 2,305.68-3,181.86-1,310.94

Finding the Fourth Proportional to 2,305.68, 3,181.86 and 1,310.94

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Solution

The fourth proportional to 2,305.68, 3,181.86 and 1,310.94 is: 1,809.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,305.68 : 3,181.86 = 1,310.94 : x
  2. Step 2: Convert to fraction form
    2,305.68/3,181.86 = 1,310.94/x
  3. Step 3: Cross multiply
    2,305.68x = 3,181.86 × 1,310.94
  4. Step 4: Simplify right side
    2,305.68x = 4,171,227.55
  5. Step 5: Solve for x
    x = 4,171,227.55/2,305.68
  6. Step 6: Final answer
    x = 1,809.11

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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.