Home / 7,198.14-10,798.56-2,815.32

Finding the Fourth Proportional to 7,198.14, 10,798.56 and 2,815.32

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Solution

The fourth proportional to 7,198.14, 10,798.56 and 2,815.32 is: 4,223.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,198.14 : 10,798.56 = 2,815.32 : x
  2. Step 2: Convert to fraction form
    7,198.14/10,798.56 = 2,815.32/x
  3. Step 3: Cross multiply
    7,198.14x = 10,798.56 × 2,815.32
  4. Step 4: Simplify right side
    7,198.14x = 30,401,401.94
  5. Step 5: Solve for x
    x = 30,401,401.94/7,198.14
  6. Step 6: Final answer
    x = 4,223.51

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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.