Home / 3,851,138.21-5,314,736.80-2,132,258.72

Finding the Fourth Proportional to 3,851,138.21, 5,314,736.80 and 2,132,258.72

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Solution

The fourth proportional to 3,851,138.21, 5,314,736.80 and 2,132,258.72 is: 2,942,608.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,851,138.21 : 5,314,736.80 = 2,132,258.72 : x
  2. Step 2: Convert to fraction form
    3,851,138.21/5,314,736.80 = 2,132,258.72/x
  3. Step 3: Cross multiply
    3,851,138.21x = 5,314,736.80 × 2,132,258.72
  4. Step 4: Simplify right side
    3,851,138.21x = 11,332,393,875,643.60
  5. Step 5: Solve for x
    x = 11,332,393,875,643.60/3,851,138.21
  6. Step 6: Final answer
    x = 2,942,608.98

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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.