Home / 2,172.91-3,000.21-1,334.77

Finding the Fourth Proportional to 2,172.91, 3,000.21 and 1,334.77

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Solution

The fourth proportional to 2,172.91, 3,000.21 and 1,334.77 is: 1,842.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172.91 : 3,000.21 = 1,334.77 : x
  2. Step 2: Convert to fraction form
    2,172.91/3,000.21 = 1,334.77/x
  3. Step 3: Cross multiply
    2,172.91x = 3,000.21 × 1,334.77
  4. Step 4: Simplify right side
    2,172.91x = 4,004,590.30
  5. Step 5: Solve for x
    x = 4,004,590.30/2,172.91
  6. Step 6: Final answer
    x = 1,842.96

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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.