Home / 3,129.17-4,696.70-1,961.51

Finding the Fourth Proportional to 3,129.17, 4,696.70 and 1,961.51

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Solution

The fourth proportional to 3,129.17, 4,696.70 and 1,961.51 is: 2,944.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.17 : 4,696.70 = 1,961.51 : x
  2. Step 2: Convert to fraction form
    3,129.17/4,696.70 = 1,961.51/x
  3. Step 3: Cross multiply
    3,129.17x = 4,696.70 × 1,961.51
  4. Step 4: Simplify right side
    3,129.17x = 9,212,590.73
  5. Step 5: Solve for x
    x = 9,212,590.73/3,129.17
  6. Step 6: Final answer
    x = 2,944.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.