Home / 2,684.10-3,704.09-1,621.72

Finding the Fourth Proportional to 2,684.10, 3,704.09 and 1,621.72

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Solution

The fourth proportional to 2,684.10, 3,704.09 and 1,621.72 is: 2,237.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,684.10 : 3,704.09 = 1,621.72 : x
  2. Step 2: Convert to fraction form
    2,684.10/3,704.09 = 1,621.72/x
  3. Step 3: Cross multiply
    2,684.10x = 3,704.09 × 1,621.72
  4. Step 4: Simplify right side
    2,684.10x = 6,006,982.37
  5. Step 5: Solve for x
    x = 6,006,982.37/2,684.10
  6. Step 6: Final answer
    x = 2,237.99

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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.