Home / 2,174.09-3,000.32-1,229.92

Finding the Fourth Proportional to 2,174.09, 3,000.32 and 1,229.92

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Solution

The fourth proportional to 2,174.09, 3,000.32 and 1,229.92 is: 1,697.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,174.09 : 3,000.32 = 1,229.92 : x
  2. Step 2: Convert to fraction form
    2,174.09/3,000.32 = 1,229.92/x
  3. Step 3: Cross multiply
    2,174.09x = 3,000.32 × 1,229.92
  4. Step 4: Simplify right side
    2,174.09x = 3,690,153.57
  5. Step 5: Solve for x
    x = 3,690,153.57/2,174.09
  6. Step 6: Final answer
    x = 1,697.33

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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.