Home / 1,917.36-2,644.33-1,620.07

Finding the Fourth Proportional to 1,917.36, 2,644.33 and 1,620.07

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Solution

The fourth proportional to 1,917.36, 2,644.33 and 1,620.07 is: 2,234.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917.36 : 2,644.33 = 1,620.07 : x
  2. Step 2: Convert to fraction form
    1,917.36/2,644.33 = 1,620.07/x
  3. Step 3: Cross multiply
    1,917.36x = 2,644.33 × 1,620.07
  4. Step 4: Simplify right side
    1,917.36x = 4,283,986.48
  5. Step 5: Solve for x
    x = 4,283,986.48/1,917.36
  6. Step 6: Final answer
    x = 2,234.32

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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.