Home / 3,555.33-5,333.62-1,214.78

Finding the Fourth Proportional to 3,555.33, 5,333.62 and 1,214.78

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Solution

The fourth proportional to 3,555.33, 5,333.62 and 1,214.78 is: 1,822.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.33 : 5,333.62 = 1,214.78 : x
  2. Step 2: Convert to fraction form
    3,555.33/5,333.62 = 1,214.78/x
  3. Step 3: Cross multiply
    3,555.33x = 5,333.62 × 1,214.78
  4. Step 4: Simplify right side
    3,555.33x = 6,479,185.20
  5. Step 5: Solve for x
    x = 6,479,185.20/3,555.33
  6. Step 6: Final answer
    x = 1,822.39

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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.