Home / 3,942.69-5,913.96-1,020.98

Finding the Fourth Proportional to 3,942.69, 5,913.96 and 1,020.98

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Solution

The fourth proportional to 3,942.69, 5,913.96 and 1,020.98 is: 1,531.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.69 : 5,913.96 = 1,020.98 : x
  2. Step 2: Convert to fraction form
    3,942.69/5,913.96 = 1,020.98/x
  3. Step 3: Cross multiply
    3,942.69x = 5,913.96 × 1,020.98
  4. Step 4: Simplify right side
    3,942.69x = 6,038,034.88
  5. Step 5: Solve for x
    x = 6,038,034.88/3,942.69
  6. Step 6: Final answer
    x = 1,531.45

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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.