Home / 3,102.51-4,279.73-1,906.66

Finding the Fourth Proportional to 3,102.51, 4,279.73 and 1,906.66

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Solution

The fourth proportional to 3,102.51, 4,279.73 and 1,906.66 is: 2,630.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102.51 : 4,279.73 = 1,906.66 : x
  2. Step 2: Convert to fraction form
    3,102.51/4,279.73 = 1,906.66/x
  3. Step 3: Cross multiply
    3,102.51x = 4,279.73 × 1,906.66
  4. Step 4: Simplify right side
    3,102.51x = 8,160,003.67
  5. Step 5: Solve for x
    x = 8,160,003.67/3,102.51
  6. Step 6: Final answer
    x = 2,630.13

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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.