Home / 3,072.15-4,608.71-1,223.28

Finding the Fourth Proportional to 3,072.15, 4,608.71 and 1,223.28

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Solution

The fourth proportional to 3,072.15, 4,608.71 and 1,223.28 is: 1,835.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.15 : 4,608.71 = 1,223.28 : x
  2. Step 2: Convert to fraction form
    3,072.15/4,608.71 = 1,223.28/x
  3. Step 3: Cross multiply
    3,072.15x = 4,608.71 × 1,223.28
  4. Step 4: Simplify right side
    3,072.15x = 5,637,736.65
  5. Step 5: Solve for x
    x = 5,637,736.65/3,072.15
  6. Step 6: Final answer
    x = 1,835.11

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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.