Home / 2,908.39-4,015.06-1,969.15

Finding the Fourth Proportional to 2,908.39, 4,015.06 and 1,969.15

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Solution

The fourth proportional to 2,908.39, 4,015.06 and 1,969.15 is: 2,718.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,908.39 : 4,015.06 = 1,969.15 : x
  2. Step 2: Convert to fraction form
    2,908.39/4,015.06 = 1,969.15/x
  3. Step 3: Cross multiply
    2,908.39x = 4,015.06 × 1,969.15
  4. Step 4: Simplify right side
    2,908.39x = 7,906,235.32
  5. Step 5: Solve for x
    x = 7,906,235.32/2,908.39
  6. Step 6: Final answer
    x = 2,718.43

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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.