Home / 2,126.75-2,932.07-1,908.05

Finding the Fourth Proportional to 2,126.75, 2,932.07 and 1,908.05

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Solution

The fourth proportional to 2,126.75, 2,932.07 and 1,908.05 is: 2,630.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.75 : 2,932.07 = 1,908.05 : x
  2. Step 2: Convert to fraction form
    2,126.75/2,932.07 = 1,908.05/x
  3. Step 3: Cross multiply
    2,126.75x = 2,932.07 × 1,908.05
  4. Step 4: Simplify right side
    2,126.75x = 5,594,511.96
  5. Step 5: Solve for x
    x = 5,594,511.96/2,126.75
  6. Step 6: Final answer
    x = 2,630.55

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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.