Home / 3,476.78-5,215.82-1,396.94

Finding the Fourth Proportional to 3,476.78, 5,215.82 and 1,396.94

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Solution

The fourth proportional to 3,476.78, 5,215.82 and 1,396.94 is: 2,095.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,476.78 : 5,215.82 = 1,396.94 : x
  2. Step 2: Convert to fraction form
    3,476.78/5,215.82 = 1,396.94/x
  3. Step 3: Cross multiply
    3,476.78x = 5,215.82 × 1,396.94
  4. Step 4: Simplify right side
    3,476.78x = 7,286,193.65
  5. Step 5: Solve for x
    x = 7,286,193.65/3,476.78
  6. Step 6: Final answer
    x = 2,095.68

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1.5x scale

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.