Home / 1,107.60-1,519.69-1,097.28

Finding the Fourth Proportional to 1,107.60, 1,519.69 and 1,097.28

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Solution

The fourth proportional to 1,107.60, 1,519.69 and 1,097.28 is: 1,505.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107.60 : 1,519.69 = 1,097.28 : x
  2. Step 2: Convert to fraction form
    1,107.60/1,519.69 = 1,097.28/x
  3. Step 3: Cross multiply
    1,107.60x = 1,519.69 × 1,097.28
  4. Step 4: Simplify right side
    1,107.60x = 1,667,525.44
  5. Step 5: Solve for x
    x = 1,667,525.44/1,107.60
  6. Step 6: Final answer
    x = 1,505.53

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.