Home / 3,944.31-5,917.32-1,312.62

Finding the Fourth Proportional to 3,944.31, 5,917.32 and 1,312.62

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Solution

The fourth proportional to 3,944.31, 5,917.32 and 1,312.62 is: 1,969.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,944.31 : 5,917.32 = 1,312.62 : x
  2. Step 2: Convert to fraction form
    3,944.31/5,917.32 = 1,312.62/x
  3. Step 3: Cross multiply
    3,944.31x = 5,917.32 × 1,312.62
  4. Step 4: Simplify right side
    3,944.31x = 7,767,192.58
  5. Step 5: Solve for x
    x = 7,767,192.58/3,944.31
  6. Step 6: Final answer
    x = 1,969.21

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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.