Home / 2,097.21-3,144.01-1,172.01

Finding the Fourth Proportional to 2,097.21, 3,144.01 and 1,172.01

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Solution

The fourth proportional to 2,097.21, 3,144.01 and 1,172.01 is: 1,757.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,097.21 : 3,144.01 = 1,172.01 : x
  2. Step 2: Convert to fraction form
    2,097.21/3,144.01 = 1,172.01/x
  3. Step 3: Cross multiply
    2,097.21x = 3,144.01 × 1,172.01
  4. Step 4: Simplify right side
    2,097.21x = 3,684,792.51
  5. Step 5: Solve for x
    x = 3,684,792.51/2,097.21
  6. Step 6: Final answer
    x = 1,757.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.