Home / 1,508.31-2,081.57-845.22

Finding the Fourth Proportional to 1,508.31, 2,081.57 and 845.22

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Solution

The fourth proportional to 1,508.31, 2,081.57 and 845.22 is: 1,166.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,508.31 : 2,081.57 = 845.22 : x
  2. Step 2: Convert to fraction form
    1,508.31/2,081.57 = 845.22/x
  3. Step 3: Cross multiply
    1,508.31x = 2,081.57 × 845.22
  4. Step 4: Simplify right side
    1,508.31x = 1,759,380.37
  5. Step 5: Solve for x
    x = 1,759,380.37/1,508.31
  6. Step 6: Final answer
    x = 1,166.46

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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.