Home / 4,152.78-6,230.34-1,231.38

Finding the Fourth Proportional to 4,152.78, 6,230.34 and 1,231.38

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Solution

The fourth proportional to 4,152.78, 6,230.34 and 1,231.38 is: 1,847.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,152.78 : 6,230.34 = 1,231.38 : x
  2. Step 2: Convert to fraction form
    4,152.78/6,230.34 = 1,231.38/x
  3. Step 3: Cross multiply
    4,152.78x = 6,230.34 × 1,231.38
  4. Step 4: Simplify right side
    4,152.78x = 7,671,916.07
  5. Step 5: Solve for x
    x = 7,671,916.07/4,152.78
  6. Step 6: Final answer
    x = 1,847.42

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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.