Home / 2,305.88-3,181.22-1,420.14

Finding the Fourth Proportional to 2,305.88, 3,181.22 and 1,420.14

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Solution

The fourth proportional to 2,305.88, 3,181.22 and 1,420.14 is: 1,959.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,305.88 : 3,181.22 = 1,420.14 : x
  2. Step 2: Convert to fraction form
    2,305.88/3,181.22 = 1,420.14/x
  3. Step 3: Cross multiply
    2,305.88x = 3,181.22 × 1,420.14
  4. Step 4: Simplify right side
    2,305.88x = 4,517,770.67
  5. Step 5: Solve for x
    x = 4,517,770.67/2,305.88
  6. Step 6: Final answer
    x = 1,959.24

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Double scale
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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.