Home / 4,242.78-6,363.36-1,645.38

Finding the Fourth Proportional to 4,242.78, 6,363.36 and 1,645.38

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Solution

The fourth proportional to 4,242.78, 6,363.36 and 1,645.38 is: 2,467.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,242.78 : 6,363.36 = 1,645.38 : x
  2. Step 2: Convert to fraction form
    4,242.78/6,363.36 = 1,645.38/x
  3. Step 3: Cross multiply
    4,242.78x = 6,363.36 × 1,645.38
  4. Step 4: Simplify right side
    4,242.78x = 10,470,145.28
  5. Step 5: Solve for x
    x = 10,470,145.28/4,242.78
  6. Step 6: Final answer
    x = 2,467.76

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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.