Home / 1,119.24-1,555.27-1,107.24

Finding the Fourth Proportional to 1,119.24, 1,555.27 and 1,107.24

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Solution

The fourth proportional to 1,119.24, 1,555.27 and 1,107.24 is: 1,538.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119.24 : 1,555.27 = 1,107.24 : x
  2. Step 2: Convert to fraction form
    1,119.24/1,555.27 = 1,107.24/x
  3. Step 3: Cross multiply
    1,119.24x = 1,555.27 × 1,107.24
  4. Step 4: Simplify right side
    1,119.24x = 1,722,057.15
  5. Step 5: Solve for x
    x = 1,722,057.15/1,119.24
  6. Step 6: Final answer
    x = 1,538.60

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.