Home / 5,653.62-8,479.44-3,121.38

Finding the Fourth Proportional to 5,653.62, 8,479.44 and 3,121.38

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Solution

The fourth proportional to 5,653.62, 8,479.44 and 3,121.38 is: 4,681.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,653.62 : 8,479.44 = 3,121.38 : x
  2. Step 2: Convert to fraction form
    5,653.62/8,479.44 = 3,121.38/x
  3. Step 3: Cross multiply
    5,653.62x = 8,479.44 × 3,121.38
  4. Step 4: Simplify right side
    5,653.62x = 26,467,554.43
  5. Step 5: Solve for x
    x = 26,467,554.43/5,653.62
  6. Step 6: Final answer
    x = 4,681.52

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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.