Home / 3,928,145.09-5,420,215.64-2,208,933.59

Finding the Fourth Proportional to 3,928,145.09, 5,420,215.64 and 2,208,933.59

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Solution

The fourth proportional to 3,928,145.09, 5,420,215.64 and 2,208,933.59 is: 3,047,977.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928,145.09 : 5,420,215.64 = 2,208,933.59 : x
  2. Step 2: Convert to fraction form
    3,928,145.09/5,420,215.64 = 2,208,933.59/x
  3. Step 3: Cross multiply
    3,928,145.09x = 5,420,215.64 × 2,208,933.59
  4. Step 4: Simplify right side
    3,928,145.09x = 11,972,896,373,166.47
  5. Step 5: Solve for x
    x = 11,972,896,373,166.47/3,928,145.09
  6. Step 6: Final answer
    x = 3,047,977.13

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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.