Home / 3,145.87-4,720.79-1,760.11

Finding the Fourth Proportional to 3,145.87, 4,720.79 and 1,760.11

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Solution

The fourth proportional to 3,145.87, 4,720.79 and 1,760.11 is: 2,641.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.87 : 4,720.79 = 1,760.11 : x
  2. Step 2: Convert to fraction form
    3,145.87/4,720.79 = 1,760.11/x
  3. Step 3: Cross multiply
    3,145.87x = 4,720.79 × 1,760.11
  4. Step 4: Simplify right side
    3,145.87x = 8,309,089.08
  5. Step 5: Solve for x
    x = 8,309,089.08/3,145.87
  6. Step 6: Final answer
    x = 2,641.27

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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.