Home / 3,843,774-5,303,947.64-2,124,660.78

Finding the Fourth Proportional to 3,843,774, 5,303,947.64 and 2,124,660.78

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Solution

The fourth proportional to 3,843,774, 5,303,947.64 and 2,124,660.78 is: 2,931,777.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,843,774 : 5,303,947.64 = 2,124,660.78 : x
  2. Step 2: Convert to fraction form
    3,843,774/5,303,947.64 = 2,124,660.78/x
  3. Step 3: Cross multiply
    3,843,774x = 5,303,947.64 × 2,124,660.78
  4. Step 4: Simplify right side
    3,843,774x = 11,269,089,519,258.25
  5. Step 5: Solve for x
    x = 11,269,089,519,258.25/3,843,774
  6. Step 6: Final answer
    x = 2,931,777.34

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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.