Home / 3,291.09-4,911.16-2,940.61

Finding the Fourth Proportional to 3,291.09, 4,911.16 and 2,940.61

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Solution

The fourth proportional to 3,291.09, 4,911.16 and 2,940.61 is: 4,388.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,291.09 : 4,911.16 = 2,940.61 : x
  2. Step 2: Convert to fraction form
    3,291.09/4,911.16 = 2,940.61/x
  3. Step 3: Cross multiply
    3,291.09x = 4,911.16 × 2,940.61
  4. Step 4: Simplify right side
    3,291.09x = 14,441,810.51
  5. Step 5: Solve for x
    x = 14,441,810.51/3,291.09
  6. Step 6: Final answer
    x = 4,388.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.