Home / 2,638.61-3,958.87-1,234.26

Finding the Fourth Proportional to 2,638.61, 3,958.87 and 1,234.26

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Solution

The fourth proportional to 2,638.61, 3,958.87 and 1,234.26 is: 1,851.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638.61 : 3,958.87 = 1,234.26 : x
  2. Step 2: Convert to fraction form
    2,638.61/3,958.87 = 1,234.26/x
  3. Step 3: Cross multiply
    2,638.61x = 3,958.87 × 1,234.26
  4. Step 4: Simplify right side
    2,638.61x = 4,886,281.78
  5. Step 5: Solve for x
    x = 4,886,281.78/2,638.61
  6. Step 6: Final answer
    x = 1,851.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.