Home / 2,674.08-3,688.60-1,729.54

Finding the Fourth Proportional to 2,674.08, 3,688.60 and 1,729.54

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Solution

The fourth proportional to 2,674.08, 3,688.60 and 1,729.54 is: 2,385.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,674.08 : 3,688.60 = 1,729.54 : x
  2. Step 2: Convert to fraction form
    2,674.08/3,688.60 = 1,729.54/x
  3. Step 3: Cross multiply
    2,674.08x = 3,688.60 × 1,729.54
  4. Step 4: Simplify right side
    2,674.08x = 6,379,581.24
  5. Step 5: Solve for x
    x = 6,379,581.24/2,674.08
  6. Step 6: Final answer
    x = 2,385.71

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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.