Home / 4,918.78-6,788.64-3,239.92

Finding the Fourth Proportional to 4,918.78, 6,788.64 and 3,239.92

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Solution

The fourth proportional to 4,918.78, 6,788.64 and 3,239.92 is: 4,471.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.78 : 6,788.64 = 3,239.92 : x
  2. Step 2: Convert to fraction form
    4,918.78/6,788.64 = 3,239.92/x
  3. Step 3: Cross multiply
    4,918.78x = 6,788.64 × 3,239.92
  4. Step 4: Simplify right side
    4,918.78x = 21,994,650.51
  5. Step 5: Solve for x
    x = 21,994,650.51/4,918.78
  6. Step 6: Final answer
    x = 4,471.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.