Home / 3,509.09-5,260.38-1,319.27

Finding the Fourth Proportional to 3,509.09, 5,260.38 and 1,319.27

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Solution

The fourth proportional to 3,509.09, 5,260.38 and 1,319.27 is: 1,977.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,509.09 : 5,260.38 = 1,319.27 : x
  2. Step 2: Convert to fraction form
    3,509.09/5,260.38 = 1,319.27/x
  3. Step 3: Cross multiply
    3,509.09x = 5,260.38 × 1,319.27
  4. Step 4: Simplify right side
    3,509.09x = 6,939,861.52
  5. Step 5: Solve for x
    x = 6,939,861.52/3,509.09
  6. Step 6: Final answer
    x = 1,977.68

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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.