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Finding the Fourth Proportional to 2,992.44, 4,129.50 and 1,647.99

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Solution

The fourth proportional to 2,992.44, 4,129.50 and 1,647.99 is: 2,274.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,992.44 : 4,129.50 = 1,647.99 : x
  2. Step 2: Convert to fraction form
    2,992.44/4,129.50 = 1,647.99/x
  3. Step 3: Cross multiply
    2,992.44x = 4,129.50 × 1,647.99
  4. Step 4: Simplify right side
    2,992.44x = 6,805,374.71
  5. Step 5: Solve for x
    x = 6,805,374.71/2,992.44
  6. Step 6: Final answer
    x = 2,274.19

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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.