Home / 2,739.87-4,104.56-1,812.69

Finding the Fourth Proportional to 2,739.87, 4,104.56 and 1,812.69

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Solution

The fourth proportional to 2,739.87, 4,104.56 and 1,812.69 is: 2,715.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,739.87 : 4,104.56 = 1,812.69 : x
  2. Step 2: Convert to fraction form
    2,739.87/4,104.56 = 1,812.69/x
  3. Step 3: Cross multiply
    2,739.87x = 4,104.56 × 1,812.69
  4. Step 4: Simplify right side
    2,739.87x = 7,440,285.80
  5. Step 5: Solve for x
    x = 7,440,285.80/2,739.87
  6. Step 6: Final answer
    x = 2,715.56

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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.