Home / 3,619.12-4,994.40-2,291.44

Finding the Fourth Proportional to 3,619.12, 4,994.40 and 2,291.44

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Solution

The fourth proportional to 3,619.12, 4,994.40 and 2,291.44 is: 3,162.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.12 : 4,994.40 = 2,291.44 : x
  2. Step 2: Convert to fraction form
    3,619.12/4,994.40 = 2,291.44/x
  3. Step 3: Cross multiply
    3,619.12x = 4,994.40 × 2,291.44
  4. Step 4: Simplify right side
    3,619.12x = 11,444,367.94
  5. Step 5: Solve for x
    x = 11,444,367.94/3,619.12
  6. Step 6: Final answer
    x = 3,162.20

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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.