Home / 2,141.96-3,208.34-1,908.28

Finding the Fourth Proportional to 2,141.96, 3,208.34 and 1,908.28

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Solution

The fourth proportional to 2,141.96, 3,208.34 and 1,908.28 is: 2,858.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,141.96 : 3,208.34 = 1,908.28 : x
  2. Step 2: Convert to fraction form
    2,141.96/3,208.34 = 1,908.28/x
  3. Step 3: Cross multiply
    2,141.96x = 3,208.34 × 1,908.28
  4. Step 4: Simplify right side
    2,141.96x = 6,122,411.06
  5. Step 5: Solve for x
    x = 6,122,411.06/2,141.96
  6. Step 6: Final answer
    x = 2,858.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.