Home / 2,351.91-3,245.50-1,289.67

Finding the Fourth Proportional to 2,351.91, 3,245.50 and 1,289.67

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Solution

The fourth proportional to 2,351.91, 3,245.50 and 1,289.67 is: 1,779.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,351.91 : 3,245.50 = 1,289.67 : x
  2. Step 2: Convert to fraction form
    2,351.91/3,245.50 = 1,289.67/x
  3. Step 3: Cross multiply
    2,351.91x = 3,245.50 × 1,289.67
  4. Step 4: Simplify right side
    2,351.91x = 4,185,623.99
  5. Step 5: Solve for x
    x = 4,185,623.99/2,351.91
  6. Step 6: Final answer
    x = 1,779.67

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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.