Home / 2,694.51-3,718.67-1,515.78

Finding the Fourth Proportional to 2,694.51, 3,718.67 and 1,515.78

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Solution

The fourth proportional to 2,694.51, 3,718.67 and 1,515.78 is: 2,091.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,694.51 : 3,718.67 = 1,515.78 : x
  2. Step 2: Convert to fraction form
    2,694.51/3,718.67 = 1,515.78/x
  3. Step 3: Cross multiply
    2,694.51x = 3,718.67 × 1,515.78
  4. Step 4: Simplify right side
    2,694.51x = 5,636,678.03
  5. Step 5: Solve for x
    x = 5,636,678.03/2,694.51
  6. Step 6: Final answer
    x = 2,091.91

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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.