Home / 3,166.50-4,748.94-1,319.30

Finding the Fourth Proportional to 3,166.50, 4,748.94 and 1,319.30

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Solution

The fourth proportional to 3,166.50, 4,748.94 and 1,319.30 is: 1,978.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,166.50 : 4,748.94 = 1,319.30 : x
  2. Step 2: Convert to fraction form
    3,166.50/4,748.94 = 1,319.30/x
  3. Step 3: Cross multiply
    3,166.50x = 4,748.94 × 1,319.30
  4. Step 4: Simplify right side
    3,166.50x = 6,265,252.80
  5. Step 5: Solve for x
    x = 6,265,252.80/3,166.50
  6. Step 6: Final answer
    x = 1,978.61

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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.