Home / 2,155,768.87-3,223,947.09-1,917,284.72

Finding the Fourth Proportional to 2,155,768.87, 3,223,947.09 and 1,917,284.72

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Solution

The fourth proportional to 2,155,768.87, 3,223,947.09 and 1,917,284.72 is: 2,867,294.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155,768.87 : 3,223,947.09 = 1,917,284.72 : x
  2. Step 2: Convert to fraction form
    2,155,768.87/3,223,947.09 = 1,917,284.72/x
  3. Step 3: Cross multiply
    2,155,768.87x = 3,223,947.09 × 1,917,284.72
  4. Step 4: Simplify right side
    2,155,768.87x = 6,181,224,493,745.47
  5. Step 5: Solve for x
    x = 6,181,224,493,745.47/2,155,768.87
  6. Step 6: Final answer
    x = 2,867,294.63

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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.