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Finding the Fourth Proportional to 3,086.99, 4,260.02 and 1,670.64

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Solution

The fourth proportional to 3,086.99, 4,260.02 and 1,670.64 is: 2,305.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.99 : 4,260.02 = 1,670.64 : x
  2. Step 2: Convert to fraction form
    3,086.99/4,260.02 = 1,670.64/x
  3. Step 3: Cross multiply
    3,086.99x = 4,260.02 × 1,670.64
  4. Step 4: Simplify right side
    3,086.99x = 7,116,973.13
  5. Step 5: Solve for x
    x = 7,116,973.13/3,086.99
  6. Step 6: Final answer
    x = 2,305.47

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.