Home / 2,124.21-3,188.07-1,084.98

Finding the Fourth Proportional to 2,124.21, 3,188.07 and 1,084.98

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Solution

The fourth proportional to 2,124.21, 3,188.07 and 1,084.98 is: 1,628.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.21 : 3,188.07 = 1,084.98 : x
  2. Step 2: Convert to fraction form
    2,124.21/3,188.07 = 1,084.98/x
  3. Step 3: Cross multiply
    2,124.21x = 3,188.07 × 1,084.98
  4. Step 4: Simplify right side
    2,124.21x = 3,458,992.19
  5. Step 5: Solve for x
    x = 3,458,992.19/2,124.21
  6. Step 6: Final answer
    x = 1,628.37

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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.