Home / 1,016.26-1,395.19-917.44

Finding the Fourth Proportional to 1,016.26, 1,395.19 and 917.44

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Solution

The fourth proportional to 1,016.26, 1,395.19 and 917.44 is: 1,259.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016.26 : 1,395.19 = 917.44 : x
  2. Step 2: Convert to fraction form
    1,016.26/1,395.19 = 917.44/x
  3. Step 3: Cross multiply
    1,016.26x = 1,395.19 × 917.44
  4. Step 4: Simplify right side
    1,016.26x = 1,280,003.11
  5. Step 5: Solve for x
    x = 1,280,003.11/1,016.26
  6. Step 6: Final answer
    x = 1,259.52

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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.