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Finding the Fourth Proportional to 3,550.99, 4,900.59 and 1,979.08

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Solution

The fourth proportional to 3,550.99, 4,900.59 and 1,979.08 is: 2,731.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,550.99 : 4,900.59 = 1,979.08 : x
  2. Step 2: Convert to fraction form
    3,550.99/4,900.59 = 1,979.08/x
  3. Step 3: Cross multiply
    3,550.99x = 4,900.59 × 1,979.08
  4. Step 4: Simplify right side
    3,550.99x = 9,698,659.66
  5. Step 5: Solve for x
    x = 9,698,659.66/3,550.99
  6. Step 6: Final answer
    x = 2,731.26

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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.