Home / 2,804.91-4,202.87-2,145.99

Finding the Fourth Proportional to 2,804.91, 4,202.87 and 2,145.99

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Solution

The fourth proportional to 2,804.91, 4,202.87 and 2,145.99 is: 3,215.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,804.91 : 4,202.87 = 2,145.99 : x
  2. Step 2: Convert to fraction form
    2,804.91/4,202.87 = 2,145.99/x
  3. Step 3: Cross multiply
    2,804.91x = 4,202.87 × 2,145.99
  4. Step 4: Simplify right side
    2,804.91x = 9,019,316.99
  5. Step 5: Solve for x
    x = 9,019,316.99/2,804.91
  6. Step 6: Final answer
    x = 3,215.55

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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.