Home / 2,687.20-4,033.53-1,806.93

Finding the Fourth Proportional to 2,687.20, 4,033.53 and 1,806.93

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Solution

The fourth proportional to 2,687.20, 4,033.53 and 1,806.93 is: 2,712.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687.20 : 4,033.53 = 1,806.93 : x
  2. Step 2: Convert to fraction form
    2,687.20/4,033.53 = 1,806.93/x
  3. Step 3: Cross multiply
    2,687.20x = 4,033.53 × 1,806.93
  4. Step 4: Simplify right side
    2,687.20x = 7,288,306.36
  5. Step 5: Solve for x
    x = 7,288,306.36/2,687.20
  6. Step 6: Final answer
    x = 2,712.23

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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.