Home / 1,110.27-1,529.58-913.44

Finding the Fourth Proportional to 1,110.27, 1,529.58 and 913.44

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Solution

The fourth proportional to 1,110.27, 1,529.58 and 913.44 is: 1,258.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110.27 : 1,529.58 = 913.44 : x
  2. Step 2: Convert to fraction form
    1,110.27/1,529.58 = 913.44/x
  3. Step 3: Cross multiply
    1,110.27x = 1,529.58 × 913.44
  4. Step 4: Simplify right side
    1,110.27x = 1,397,179.56
  5. Step 5: Solve for x
    x = 1,397,179.56/1,110.27
  6. Step 6: Final answer
    x = 1,258.41

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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.