Home / 3,881,969.71-5,357,046.44-2,115,883.24

Finding the Fourth Proportional to 3,881,969.71, 5,357,046.44 and 2,115,883.24

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Solution

The fourth proportional to 3,881,969.71, 5,357,046.44 and 2,115,883.24 is: 2,919,879.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881,969.71 : 5,357,046.44 = 2,115,883.24 : x
  2. Step 2: Convert to fraction form
    3,881,969.71/5,357,046.44 = 2,115,883.24/x
  3. Step 3: Cross multiply
    3,881,969.71x = 5,357,046.44 × 2,115,883.24
  4. Step 4: Simplify right side
    3,881,969.71x = 11,334,884,770,194.76
  5. Step 5: Solve for x
    x = 11,334,884,770,194.76/3,881,969.71
  6. Step 6: Final answer
    x = 2,919,879.76

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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.