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Finding the Fourth Proportional to 5,642.82, 7,786.94 and 3,284.91

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Solution

The fourth proportional to 5,642.82, 7,786.94 and 3,284.91 is: 4,533.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,642.82 : 7,786.94 = 3,284.91 : x
  2. Step 2: Convert to fraction form
    5,642.82/7,786.94 = 3,284.91/x
  3. Step 3: Cross multiply
    5,642.82x = 7,786.94 × 3,284.91
  4. Step 4: Simplify right side
    5,642.82x = 25,579,380.65
  5. Step 5: Solve for x
    x = 25,579,380.65/5,642.82
  6. Step 6: Final answer
    x = 4,533.08

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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.