Home / 4,486.45-6,728.28-2,145.22

Finding the Fourth Proportional to 4,486.45, 6,728.28 and 2,145.22

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Solution

The fourth proportional to 4,486.45, 6,728.28 and 2,145.22 is: 3,217.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,486.45 : 6,728.28 = 2,145.22 : x
  2. Step 2: Convert to fraction form
    4,486.45/6,728.28 = 2,145.22/x
  3. Step 3: Cross multiply
    4,486.45x = 6,728.28 × 2,145.22
  4. Step 4: Simplify right side
    4,486.45x = 14,433,640.82
  5. Step 5: Solve for x
    x = 14,433,640.82/4,486.45
  6. Step 6: Final answer
    x = 3,217.16

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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.