Home / 2,173.47-2,997.79-1,427.16

Finding the Fourth Proportional to 2,173.47, 2,997.79 and 1,427.16

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Solution

The fourth proportional to 2,173.47, 2,997.79 and 1,427.16 is: 1,968.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,173.47 : 2,997.79 = 1,427.16 : x
  2. Step 2: Convert to fraction form
    2,173.47/2,997.79 = 1,427.16/x
  3. Step 3: Cross multiply
    2,173.47x = 2,997.79 × 1,427.16
  4. Step 4: Simplify right side
    2,173.47x = 4,278,310.99
  5. Step 5: Solve for x
    x = 4,278,310.99/2,173.47
  6. Step 6: Final answer
    x = 1,968.43

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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.