Home / 2,740.74-4,111.32-985.97

Finding the Fourth Proportional to 2,740.74, 4,111.32 and 985.97

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Solution

The fourth proportional to 2,740.74, 4,111.32 and 985.97 is: 1,479.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,740.74 : 4,111.32 = 985.97 : x
  2. Step 2: Convert to fraction form
    2,740.74/4,111.32 = 985.97/x
  3. Step 3: Cross multiply
    2,740.74x = 4,111.32 × 985.97
  4. Step 4: Simplify right side
    2,740.74x = 4,053,630.65
  5. Step 5: Solve for x
    x = 4,053,630.65/2,740.74
  6. Step 6: Final answer
    x = 1,479.03

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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.