Home / 1,317.17-1,817.26-845.33

Finding the Fourth Proportional to 1,317.17, 1,817.26 and 845.33

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Solution

The fourth proportional to 1,317.17, 1,817.26 and 845.33 is: 1,166.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317.17 : 1,817.26 = 845.33 : x
  2. Step 2: Convert to fraction form
    1,317.17/1,817.26 = 845.33/x
  3. Step 3: Cross multiply
    1,317.17x = 1,817.26 × 845.33
  4. Step 4: Simplify right side
    1,317.17x = 1,536,173.20
  5. Step 5: Solve for x
    x = 1,536,173.20/1,317.17
  6. Step 6: Final answer
    x = 1,166.26

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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.