Home / 2,835.09-3,911.16-1,889.96

Finding the Fourth Proportional to 2,835.09, 3,911.16 and 1,889.96

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Solution

The fourth proportional to 2,835.09, 3,911.16 and 1,889.96 is: 2,607.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,835.09 : 3,911.16 = 1,889.96 : x
  2. Step 2: Convert to fraction form
    2,835.09/3,911.16 = 1,889.96/x
  3. Step 3: Cross multiply
    2,835.09x = 3,911.16 × 1,889.96
  4. Step 4: Simplify right side
    2,835.09x = 7,391,945.73
  5. Step 5: Solve for x
    x = 7,391,945.73/2,835.09
  6. Step 6: Final answer
    x = 2,607.31

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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.