Home / 3,418.60-4,717.74-1,906.25

Finding the Fourth Proportional to 3,418.60, 4,717.74 and 1,906.25

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Solution

The fourth proportional to 3,418.60, 4,717.74 and 1,906.25 is: 2,630.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.60 : 4,717.74 = 1,906.25 : x
  2. Step 2: Convert to fraction form
    3,418.60/4,717.74 = 1,906.25/x
  3. Step 3: Cross multiply
    3,418.60x = 4,717.74 × 1,906.25
  4. Step 4: Simplify right side
    3,418.60x = 8,993,182.34
  5. Step 5: Solve for x
    x = 8,993,182.34/3,418.60
  6. Step 6: Final answer
    x = 2,630.67

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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.