Home / 2,305.35-3,181.47-1,310.60

Finding the Fourth Proportional to 2,305.35, 3,181.47 and 1,310.60

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Solution

The fourth proportional to 2,305.35, 3,181.47 and 1,310.60 is: 1,808.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,305.35 : 3,181.47 = 1,310.60 : x
  2. Step 2: Convert to fraction form
    2,305.35/3,181.47 = 1,310.60/x
  3. Step 3: Cross multiply
    2,305.35x = 3,181.47 × 1,310.60
  4. Step 4: Simplify right side
    2,305.35x = 4,169,634.58
  5. Step 5: Solve for x
    x = 4,169,634.58/2,305.35
  6. Step 6: Final answer
    x = 1,808.68

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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.