Home / 1,908.32-2,633.44-1,122.56

Finding the Fourth Proportional to 1,908.32, 2,633.44 and 1,122.56

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Solution

The fourth proportional to 1,908.32, 2,633.44 and 1,122.56 is: 1,549.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.32 : 2,633.44 = 1,122.56 : x
  2. Step 2: Convert to fraction form
    1,908.32/2,633.44 = 1,122.56/x
  3. Step 3: Cross multiply
    1,908.32x = 2,633.44 × 1,122.56
  4. Step 4: Simplify right side
    1,908.32x = 2,956,194.41
  5. Step 5: Solve for x
    x = 2,956,194.41/1,908.32
  6. Step 6: Final answer
    x = 1,549.11

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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.