Home / 3,876,782.56-5,349,840.84-2,157,858.88

Finding the Fourth Proportional to 3,876,782.56, 5,349,840.84 and 2,157,858.88

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Solution

The fourth proportional to 3,876,782.56, 5,349,840.84 and 2,157,858.88 is: 2,977,778.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876,782.56 : 5,349,840.84 = 2,157,858.88 : x
  2. Step 2: Convert to fraction form
    3,876,782.56/5,349,840.84 = 2,157,858.88/x
  3. Step 3: Cross multiply
    3,876,782.56x = 5,349,840.84 × 2,157,858.88
  4. Step 4: Simplify right side
    3,876,782.56x = 11,544,201,563,180.66
  5. Step 5: Solve for x
    x = 11,544,201,563,180.66/3,876,782.56
  6. Step 6: Final answer
    x = 2,977,778.97

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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.