Home / 2,678.45-3,696.74-1,794.39

Finding the Fourth Proportional to 2,678.45, 3,696.74 and 1,794.39

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Solution

The fourth proportional to 2,678.45, 3,696.74 and 1,794.39 is: 2,476.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.45 : 3,696.74 = 1,794.39 : x
  2. Step 2: Convert to fraction form
    2,678.45/3,696.74 = 1,794.39/x
  3. Step 3: Cross multiply
    2,678.45x = 3,696.74 × 1,794.39
  4. Step 4: Simplify right side
    2,678.45x = 6,633,384.32
  5. Step 5: Solve for x
    x = 6,633,384.32/2,678.45
  6. Step 6: Final answer
    x = 2,476.58

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1.5x scale

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.