Home / 1,908.88-2,633.70-1,122.64

Finding the Fourth Proportional to 1,908.88, 2,633.70 and 1,122.64

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Solution

The fourth proportional to 1,908.88, 2,633.70 and 1,122.64 is: 1,548.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.88 : 2,633.70 = 1,122.64 : x
  2. Step 2: Convert to fraction form
    1,908.88/2,633.70 = 1,122.64/x
  3. Step 3: Cross multiply
    1,908.88x = 2,633.70 × 1,122.64
  4. Step 4: Simplify right side
    1,908.88x = 2,956,696.97
  5. Step 5: Solve for x
    x = 2,956,696.97/1,908.88
  6. Step 6: Final answer
    x = 1,548.92

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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.