Home / 4,453.13-6,678.68-1,680.09

Finding the Fourth Proportional to 4,453.13, 6,678.68 and 1,680.09

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Solution

The fourth proportional to 4,453.13, 6,678.68 and 1,680.09 is: 2,519.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,453.13 : 6,678.68 = 1,680.09 : x
  2. Step 2: Convert to fraction form
    4,453.13/6,678.68 = 1,680.09/x
  3. Step 3: Cross multiply
    4,453.13x = 6,678.68 × 1,680.09
  4. Step 4: Simplify right side
    4,453.13x = 11,220,775.08
  5. Step 5: Solve for x
    x = 11,220,775.08/4,453.13
  6. Step 6: Final answer
    x = 2,519.75

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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.