Home / 1,645.92-2,272.01-1,114.54

Finding the Fourth Proportional to 1,645.92, 2,272.01 and 1,114.54

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Solution

The fourth proportional to 1,645.92, 2,272.01 and 1,114.54 is: 1,538.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645.92 : 2,272.01 = 1,114.54 : x
  2. Step 2: Convert to fraction form
    1,645.92/2,272.01 = 1,114.54/x
  3. Step 3: Cross multiply
    1,645.92x = 2,272.01 × 1,114.54
  4. Step 4: Simplify right side
    1,645.92x = 2,532,234.77
  5. Step 5: Solve for x
    x = 2,532,234.77/1,645.92
  6. Step 6: Final answer
    x = 1,538.49

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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.