Home / 2,174.10-3,000.26-1,229.90

Finding the Fourth Proportional to 2,174.10, 3,000.26 and 1,229.90

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Solution

The fourth proportional to 2,174.10, 3,000.26 and 1,229.90 is: 1,697.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,174.10 : 3,000.26 = 1,229.90 : x
  2. Step 2: Convert to fraction form
    2,174.10/3,000.26 = 1,229.90/x
  3. Step 3: Cross multiply
    2,174.10x = 3,000.26 × 1,229.90
  4. Step 4: Simplify right side
    2,174.10x = 3,689,998.62
  5. Step 5: Solve for x
    x = 3,689,998.62/2,174.10
  6. Step 6: Final answer
    x = 1,697.25

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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.