Home / 1,622.85-2,239.62-1,272.93

Finding the Fourth Proportional to 1,622.85, 2,239.62 and 1,272.93

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Solution

The fourth proportional to 1,622.85, 2,239.62 and 1,272.93 is: 1,756.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,622.85 : 2,239.62 = 1,272.93 : x
  2. Step 2: Convert to fraction form
    1,622.85/2,239.62 = 1,272.93/x
  3. Step 3: Cross multiply
    1,622.85x = 2,239.62 × 1,272.93
  4. Step 4: Simplify right side
    1,622.85x = 2,850,879.49
  5. Step 5: Solve for x
    x = 2,850,879.49/1,622.85
  6. Step 6: Final answer
    x = 1,756.71

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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.