Home / 3,102.98-4,656.43-2,811.06

Finding the Fourth Proportional to 3,102.98, 4,656.43 and 2,811.06

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Solution

The fourth proportional to 3,102.98, 4,656.43 and 2,811.06 is: 4,218.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102.98 : 4,656.43 = 2,811.06 : x
  2. Step 2: Convert to fraction form
    3,102.98/4,656.43 = 2,811.06/x
  3. Step 3: Cross multiply
    3,102.98x = 4,656.43 × 2,811.06
  4. Step 4: Simplify right side
    3,102.98x = 13,089,523.66
  5. Step 5: Solve for x
    x = 13,089,523.66/3,102.98
  6. Step 6: Final answer
    x = 4,218.38

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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.