Home / 2,940.16-4,411.32-2,119.36

Finding the Fourth Proportional to 2,940.16, 4,411.32 and 2,119.36

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Solution

The fourth proportional to 2,940.16, 4,411.32 and 2,119.36 is: 3,179.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940.16 : 4,411.32 = 2,119.36 : x
  2. Step 2: Convert to fraction form
    2,940.16/4,411.32 = 2,119.36/x
  3. Step 3: Cross multiply
    2,940.16x = 4,411.32 × 2,119.36
  4. Step 4: Simplify right side
    2,940.16x = 9,349,175.16
  5. Step 5: Solve for x
    x = 9,349,175.16/2,940.16
  6. Step 6: Final answer
    x = 3,179.82

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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.