Home / 1,508.23-2,081.42-845.05

Finding the Fourth Proportional to 1,508.23, 2,081.42 and 845.05

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Solution

The fourth proportional to 1,508.23, 2,081.42 and 845.05 is: 1,166.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,508.23 : 2,081.42 = 845.05 : x
  2. Step 2: Convert to fraction form
    1,508.23/2,081.42 = 845.05/x
  3. Step 3: Cross multiply
    1,508.23x = 2,081.42 × 845.05
  4. Step 4: Simplify right side
    1,508.23x = 1,758,903.97
  5. Step 5: Solve for x
    x = 1,758,903.97/1,508.23
  6. Step 6: Final answer
    x = 1,166.20

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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.