Home / 2,821.21-4,212.52-2,295.27

Finding the Fourth Proportional to 2,821.21, 4,212.52 and 2,295.27

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Solution

The fourth proportional to 2,821.21, 4,212.52 and 2,295.27 is: 3,427.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.21 : 4,212.52 = 2,295.27 : x
  2. Step 2: Convert to fraction form
    2,821.21/4,212.52 = 2,295.27/x
  3. Step 3: Cross multiply
    2,821.21x = 4,212.52 × 2,295.27
  4. Step 4: Simplify right side
    2,821.21x = 9,668,870.78
  5. Step 5: Solve for x
    x = 9,668,870.78/2,821.21
  6. Step 6: Final answer
    x = 3,427.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.