Home / 9,131.09-13,694.81-2,890.04

Finding the Fourth Proportional to 9,131.09, 13,694.81 and 2,890.04

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Solution

The fourth proportional to 9,131.09, 13,694.81 and 2,890.04 is: 4,334.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,131.09 : 13,694.81 = 2,890.04 : x
  2. Step 2: Convert to fraction form
    9,131.09/13,694.81 = 2,890.04/x
  3. Step 3: Cross multiply
    9,131.09x = 13,694.81 × 2,890.04
  4. Step 4: Simplify right side
    9,131.09x = 39,578,465.77
  5. Step 5: Solve for x
    x = 39,578,465.77/9,131.09
  6. Step 6: Final answer
    x = 4,334.48

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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.