Home / 2,172.22-2,997.25-1,374.99

Finding the Fourth Proportional to 2,172.22, 2,997.25 and 1,374.99

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Solution

The fourth proportional to 2,172.22, 2,997.25 and 1,374.99 is: 1,897.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172.22 : 2,997.25 = 1,374.99 : x
  2. Step 2: Convert to fraction form
    2,172.22/2,997.25 = 1,374.99/x
  3. Step 3: Cross multiply
    2,172.22x = 2,997.25 × 1,374.99
  4. Step 4: Simplify right side
    2,172.22x = 4,121,184.29
  5. Step 5: Solve for x
    x = 4,121,184.29/2,172.22
  6. Step 6: Final answer
    x = 1,897.22

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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.