Home / 3,015.44-4,518.30-2,145.50

Finding the Fourth Proportional to 3,015.44, 4,518.30 and 2,145.50

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Solution

The fourth proportional to 3,015.44, 4,518.30 and 2,145.50 is: 3,214.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.44 : 4,518.30 = 2,145.50 : x
  2. Step 2: Convert to fraction form
    3,015.44/4,518.30 = 2,145.50/x
  3. Step 3: Cross multiply
    3,015.44x = 4,518.30 × 2,145.50
  4. Step 4: Simplify right side
    3,015.44x = 9,694,012.65
  5. Step 5: Solve for x
    x = 9,694,012.65/3,015.44
  6. Step 6: Final answer
    x = 3,214.79

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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.