Home / 2,072.22-2,859.64-1,188.01

Finding the Fourth Proportional to 2,072.22, 2,859.64 and 1,188.01

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Solution

The fourth proportional to 2,072.22, 2,859.64 and 1,188.01 is: 1,639.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,072.22 : 2,859.64 = 1,188.01 : x
  2. Step 2: Convert to fraction form
    2,072.22/2,859.64 = 1,188.01/x
  3. Step 3: Cross multiply
    2,072.22x = 2,859.64 × 1,188.01
  4. Step 4: Simplify right side
    2,072.22x = 3,397,280.92
  5. Step 5: Solve for x
    x = 3,397,280.92/2,072.22
  6. Step 6: Final answer
    x = 1,639.44

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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.