Home / 1,761.32-2,640.07-1,145.47

Finding the Fourth Proportional to 1,761.32, 2,640.07 and 1,145.47

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Solution

The fourth proportional to 1,761.32, 2,640.07 and 1,145.47 is: 1,716.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761.32 : 2,640.07 = 1,145.47 : x
  2. Step 2: Convert to fraction form
    1,761.32/2,640.07 = 1,145.47/x
  3. Step 3: Cross multiply
    1,761.32x = 2,640.07 × 1,145.47
  4. Step 4: Simplify right side
    1,761.32x = 3,024,110.86
  5. Step 5: Solve for x
    x = 3,024,110.86/1,761.32
  6. Step 6: Final answer
    x = 1,716.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.