Home / 3,845.56-5,769.67-1,213.47

Finding the Fourth Proportional to 3,845.56, 5,769.67 and 1,213.47

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Solution

The fourth proportional to 3,845.56, 5,769.67 and 1,213.47 is: 1,820.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,845.56 : 5,769.67 = 1,213.47 : x
  2. Step 2: Convert to fraction form
    3,845.56/5,769.67 = 1,213.47/x
  3. Step 3: Cross multiply
    3,845.56x = 5,769.67 × 1,213.47
  4. Step 4: Simplify right side
    3,845.56x = 7,001,292.61
  5. Step 5: Solve for x
    x = 7,001,292.61/3,845.56
  6. Step 6: Final answer
    x = 1,820.62

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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.