Home / 5,239.47-7,861.91-2,319.84

Finding the Fourth Proportional to 5,239.47, 7,861.91 and 2,319.84

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Solution

The fourth proportional to 5,239.47, 7,861.91 and 2,319.84 is: 3,480.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.47 : 7,861.91 = 2,319.84 : x
  2. Step 2: Convert to fraction form
    5,239.47/7,861.91 = 2,319.84/x
  3. Step 3: Cross multiply
    5,239.47x = 7,861.91 × 2,319.84
  4. Step 4: Simplify right side
    5,239.47x = 18,238,361.70
  5. Step 5: Solve for x
    x = 18,238,361.70/5,239.47
  6. Step 6: Final answer
    x = 3,480.96

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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.