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Finding the Fourth Proportional to 3,485.01, 4,809 and 1,992.99

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Solution

The fourth proportional to 3,485.01, 4,809 and 1,992.99 is: 2,750.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.01 : 4,809 = 1,992.99 : x
  2. Step 2: Convert to fraction form
    3,485.01/4,809 = 1,992.99/x
  3. Step 3: Cross multiply
    3,485.01x = 4,809 × 1,992.99
  4. Step 4: Simplify right side
    3,485.01x = 9,584,288.91
  5. Step 5: Solve for x
    x = 9,584,288.91/3,485.01
  6. Step 6: Final answer
    x = 2,750.15

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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.