Home / 3,072.20-4,608.59-1,222.89

Finding the Fourth Proportional to 3,072.20, 4,608.59 and 1,222.89

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Solution

The fourth proportional to 3,072.20, 4,608.59 and 1,222.89 is: 1,834.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.20 : 4,608.59 = 1,222.89 : x
  2. Step 2: Convert to fraction form
    3,072.20/4,608.59 = 1,222.89/x
  3. Step 3: Cross multiply
    3,072.20x = 4,608.59 × 1,222.89
  4. Step 4: Simplify right side
    3,072.20x = 5,635,792.51
  5. Step 5: Solve for x
    x = 5,635,792.51/3,072.20
  6. Step 6: Final answer
    x = 1,834.45

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Half scale
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Double scale
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Similar ratio
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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.