Home / 2,129.58-2,940.26-1,333.22

Finding the Fourth Proportional to 2,129.58, 2,940.26 and 1,333.22

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Solution

The fourth proportional to 2,129.58, 2,940.26 and 1,333.22 is: 1,840.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129.58 : 2,940.26 = 1,333.22 : x
  2. Step 2: Convert to fraction form
    2,129.58/2,940.26 = 1,333.22/x
  3. Step 3: Cross multiply
    2,129.58x = 2,940.26 × 1,333.22
  4. Step 4: Simplify right side
    2,129.58x = 3,919,992.07
  5. Step 5: Solve for x
    x = 3,919,992.07/2,129.58
  6. Step 6: Final answer
    x = 1,840.73

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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.