Home / 4,881.45-6,736.49-2,891.28

Finding the Fourth Proportional to 4,881.45, 6,736.49 and 2,891.28

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Solution

The fourth proportional to 4,881.45, 6,736.49 and 2,891.28 is: 3,990.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,881.45 : 6,736.49 = 2,891.28 : x
  2. Step 2: Convert to fraction form
    4,881.45/6,736.49 = 2,891.28/x
  3. Step 3: Cross multiply
    4,881.45x = 6,736.49 × 2,891.28
  4. Step 4: Simplify right side
    4,881.45x = 19,477,078.81
  5. Step 5: Solve for x
    x = 19,477,078.81/4,881.45
  6. Step 6: Final answer
    x = 3,990.02

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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.