Home / 2,651.13-3,976.80-1,351.08

Finding the Fourth Proportional to 2,651.13, 3,976.80 and 1,351.08

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Solution

The fourth proportional to 2,651.13, 3,976.80 and 1,351.08 is: 2,026.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,651.13 : 3,976.80 = 1,351.08 : x
  2. Step 2: Convert to fraction form
    2,651.13/3,976.80 = 1,351.08/x
  3. Step 3: Cross multiply
    2,651.13x = 3,976.80 × 1,351.08
  4. Step 4: Simplify right side
    2,651.13x = 5,372,969.88
  5. Step 5: Solve for x
    x = 5,372,969.88/2,651.13
  6. Step 6: Final answer
    x = 2,026.67

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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.