Home / 3,909,942.09-5,395,716.32-2,191,074.84

Finding the Fourth Proportional to 3,909,942.09, 5,395,716.32 and 2,191,074.84

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Solution

The fourth proportional to 3,909,942.09, 5,395,716.32 and 2,191,074.84 is: 3,023,681.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909,942.09 : 5,395,716.32 = 2,191,074.84 : x
  2. Step 2: Convert to fraction form
    3,909,942.09/5,395,716.32 = 2,191,074.84/x
  3. Step 3: Cross multiply
    3,909,942.09x = 5,395,716.32 × 2,191,074.84
  4. Step 4: Simplify right side
    3,909,942.09x = 11,822,418,261,574.02
  5. Step 5: Solve for x
    x = 11,822,418,261,574.02/3,909,942.09
  6. Step 6: Final answer
    x = 3,023,681.17

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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.