Home / 8,580.74-12,874.79-3,319.44

Finding the Fourth Proportional to 8,580.74, 12,874.79 and 3,319.44

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Solution

The fourth proportional to 8,580.74, 12,874.79 and 3,319.44 is: 4,980.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,580.74 : 12,874.79 = 3,319.44 : x
  2. Step 2: Convert to fraction form
    8,580.74/12,874.79 = 3,319.44/x
  3. Step 3: Cross multiply
    8,580.74x = 12,874.79 × 3,319.44
  4. Step 4: Simplify right side
    8,580.74x = 42,737,052.94
  5. Step 5: Solve for x
    x = 42,737,052.94/8,580.74
  6. Step 6: Final answer
    x = 4,980.58

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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.