Home / 2,959.25-4,080.56-2,015.19

Finding the Fourth Proportional to 2,959.25, 4,080.56 and 2,015.19

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Solution

The fourth proportional to 2,959.25, 4,080.56 and 2,015.19 is: 2,778.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,959.25 : 4,080.56 = 2,015.19 : x
  2. Step 2: Convert to fraction form
    2,959.25/4,080.56 = 2,015.19/x
  3. Step 3: Cross multiply
    2,959.25x = 4,080.56 × 2,015.19
  4. Step 4: Simplify right side
    2,959.25x = 8,223,093.63
  5. Step 5: Solve for x
    x = 8,223,093.63/2,959.25
  6. Step 6: Final answer
    x = 2,778.78

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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.