Home / 2,981.19-4,114.79-1,722.97

Finding the Fourth Proportional to 2,981.19, 4,114.79 and 1,722.97

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Solution

The fourth proportional to 2,981.19, 4,114.79 and 1,722.97 is: 2,378.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,981.19 : 4,114.79 = 1,722.97 : x
  2. Step 2: Convert to fraction form
    2,981.19/4,114.79 = 1,722.97/x
  3. Step 3: Cross multiply
    2,981.19x = 4,114.79 × 1,722.97
  4. Step 4: Simplify right side
    2,981.19x = 7,089,662.72
  5. Step 5: Solve for x
    x = 7,089,662.72/2,981.19
  6. Step 6: Final answer
    x = 2,378.13

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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.