Home / 3,403.22-4,696.44-1,987.88

Finding the Fourth Proportional to 3,403.22, 4,696.44 and 1,987.88

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Solution

The fourth proportional to 3,403.22, 4,696.44 and 1,987.88 is: 2,743.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,403.22 : 4,696.44 = 1,987.88 : x
  2. Step 2: Convert to fraction form
    3,403.22/4,696.44 = 1,987.88/x
  3. Step 3: Cross multiply
    3,403.22x = 4,696.44 × 1,987.88
  4. Step 4: Simplify right side
    3,403.22x = 9,335,959.15
  5. Step 5: Solve for x
    x = 9,335,959.15/3,403.22
  6. Step 6: Final answer
    x = 2,743.27

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1.5x scale

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.