Home / 4,778.98-7,172.40-2,440.69

Finding the Fourth Proportional to 4,778.98, 7,172.40 and 2,440.69

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Solution

The fourth proportional to 4,778.98, 7,172.40 and 2,440.69 is: 3,663.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778.98 : 7,172.40 = 2,440.69 : x
  2. Step 2: Convert to fraction form
    4,778.98/7,172.40 = 2,440.69/x
  3. Step 3: Cross multiply
    4,778.98x = 7,172.40 × 2,440.69
  4. Step 4: Simplify right side
    4,778.98x = 17,505,604.96
  5. Step 5: Solve for x
    x = 17,505,604.96/4,778.98
  6. Step 6: Final answer
    x = 3,663.04

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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.