Home / 1,175.16-1,760.58-1,119.28

Finding the Fourth Proportional to 1,175.16, 1,760.58 and 1,119.28

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Solution

The fourth proportional to 1,175.16, 1,760.58 and 1,119.28 is: 1,676.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175.16 : 1,760.58 = 1,119.28 : x
  2. Step 2: Convert to fraction form
    1,175.16/1,760.58 = 1,119.28/x
  3. Step 3: Cross multiply
    1,175.16x = 1,760.58 × 1,119.28
  4. Step 4: Simplify right side
    1,175.16x = 1,970,581.98
  5. Step 5: Solve for x
    x = 1,970,581.98/1,175.16
  6. Step 6: Final answer
    x = 1,676.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.