Home / 3,118.01-4,679.75-2,631.41

Finding the Fourth Proportional to 3,118.01, 4,679.75 and 2,631.41

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Solution

The fourth proportional to 3,118.01, 4,679.75 and 2,631.41 is: 3,949.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.01 : 4,679.75 = 2,631.41 : x
  2. Step 2: Convert to fraction form
    3,118.01/4,679.75 = 2,631.41/x
  3. Step 3: Cross multiply
    3,118.01x = 4,679.75 × 2,631.41
  4. Step 4: Simplify right side
    3,118.01x = 12,314,317.55
  5. Step 5: Solve for x
    x = 12,314,317.55/3,118.01
  6. Step 6: Final answer
    x = 3,949.42

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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.