Home / 3,424.35-4,721.32-2,858

Finding the Fourth Proportional to 3,424.35, 4,721.32 and 2,858

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Solution

The fourth proportional to 3,424.35, 4,721.32 and 2,858 is: 3,940.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,424.35 : 4,721.32 = 2,858 : x
  2. Step 2: Convert to fraction form
    3,424.35/4,721.32 = 2,858/x
  3. Step 3: Cross multiply
    3,424.35x = 4,721.32 × 2,858
  4. Step 4: Simplify right side
    3,424.35x = 13,493,532.56
  5. Step 5: Solve for x
    x = 13,493,532.56/3,424.35
  6. Step 6: Final answer
    x = 3,940.47

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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.