Home / 1,908.56-2,633.92-1,122.46

Finding the Fourth Proportional to 1,908.56, 2,633.92 and 1,122.46

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Solution

The fourth proportional to 1,908.56, 2,633.92 and 1,122.46 is: 1,549.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.56 : 2,633.92 = 1,122.46 : x
  2. Step 2: Convert to fraction form
    1,908.56/2,633.92 = 1,122.46/x
  3. Step 3: Cross multiply
    1,908.56x = 2,633.92 × 1,122.46
  4. Step 4: Simplify right side
    1,908.56x = 2,956,460.45
  5. Step 5: Solve for x
    x = 2,956,460.45/1,908.56
  6. Step 6: Final answer
    x = 1,549.05

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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.