Home / 1,992.03-2,987.97-1,126.35

Finding the Fourth Proportional to 1,992.03, 2,987.97 and 1,126.35

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Solution

The fourth proportional to 1,992.03, 2,987.97 and 1,126.35 is: 1,689.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992.03 : 2,987.97 = 1,126.35 : x
  2. Step 2: Convert to fraction form
    1,992.03/2,987.97 = 1,126.35/x
  3. Step 3: Cross multiply
    1,992.03x = 2,987.97 × 1,126.35
  4. Step 4: Simplify right side
    1,992.03x = 3,365,500.01
  5. Step 5: Solve for x
    x = 3,365,500.01/1,992.03
  6. Step 6: Final answer
    x = 1,689.48

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1.5x scale

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.