Home / 3,086.19-4,260.33-2,145.15

Finding the Fourth Proportional to 3,086.19, 4,260.33 and 2,145.15

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Solution

The fourth proportional to 3,086.19, 4,260.33 and 2,145.15 is: 2,961.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.19 : 4,260.33 = 2,145.15 : x
  2. Step 2: Convert to fraction form
    3,086.19/4,260.33 = 2,145.15/x
  3. Step 3: Cross multiply
    3,086.19x = 4,260.33 × 2,145.15
  4. Step 4: Simplify right side
    3,086.19x = 9,139,046.90
  5. Step 5: Solve for x
    x = 9,139,046.90/3,086.19
  6. Step 6: Final answer
    x = 2,961.27

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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.