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Finding the Fourth Proportional to 4,817, 7,228.74 and 1,739

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Solution

The fourth proportional to 4,817, 7,228.74 and 1,739 is: 2,609.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,817 : 7,228.74 = 1,739 : x
  2. Step 2: Convert to fraction form
    4,817/7,228.74 = 1,739/x
  3. Step 3: Cross multiply
    4,817x = 7,228.74 × 1,739
  4. Step 4: Simplify right side
    4,817x = 12,570,778.86
  5. Step 5: Solve for x
    x = 12,570,778.86/4,817
  6. Step 6: Final answer
    x = 2,609.67

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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.