Home / 2,223.25-3,315.26-2,072.45

Finding the Fourth Proportional to 2,223.25, 3,315.26 and 2,072.45

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Solution

The fourth proportional to 2,223.25, 3,315.26 and 2,072.45 is: 3,090.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,223.25 : 3,315.26 = 2,072.45 : x
  2. Step 2: Convert to fraction form
    2,223.25/3,315.26 = 2,072.45/x
  3. Step 3: Cross multiply
    2,223.25x = 3,315.26 × 2,072.45
  4. Step 4: Simplify right side
    2,223.25x = 6,870,724.06
  5. Step 5: Solve for x
    x = 6,870,724.06/2,223.25
  6. Step 6: Final answer
    x = 3,090.40

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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.