Home / 1,992.41-2,748.32-1,284.02

Finding the Fourth Proportional to 1,992.41, 2,748.32 and 1,284.02

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Solution

The fourth proportional to 1,992.41, 2,748.32 and 1,284.02 is: 1,771.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992.41 : 2,748.32 = 1,284.02 : x
  2. Step 2: Convert to fraction form
    1,992.41/2,748.32 = 1,284.02/x
  3. Step 3: Cross multiply
    1,992.41x = 2,748.32 × 1,284.02
  4. Step 4: Simplify right side
    1,992.41x = 3,528,897.85
  5. Step 5: Solve for x
    x = 3,528,897.85/1,992.41
  6. Step 6: Final answer
    x = 1,771.17

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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.