Home / 2,351.44-3,244.94-1,289.20

Finding the Fourth Proportional to 2,351.44, 3,244.94 and 1,289.20

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Solution

The fourth proportional to 2,351.44, 3,244.94 and 1,289.20 is: 1,779.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,351.44 : 3,244.94 = 1,289.20 : x
  2. Step 2: Convert to fraction form
    2,351.44/3,244.94 = 1,289.20/x
  3. Step 3: Cross multiply
    2,351.44x = 3,244.94 × 1,289.20
  4. Step 4: Simplify right side
    2,351.44x = 4,183,370.20
  5. Step 5: Solve for x
    x = 4,183,370.20/2,351.44
  6. Step 6: Final answer
    x = 1,779.07

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1.5x scale

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.