Home / 3,407.89-5,112.27-1,216.84

Finding the Fourth Proportional to 3,407.89, 5,112.27 and 1,216.84

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Solution

The fourth proportional to 3,407.89, 5,112.27 and 1,216.84 is: 1,825.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,407.89 : 5,112.27 = 1,216.84 : x
  2. Step 2: Convert to fraction form
    3,407.89/5,112.27 = 1,216.84/x
  3. Step 3: Cross multiply
    3,407.89x = 5,112.27 × 1,216.84
  4. Step 4: Simplify right side
    3,407.89x = 6,220,814.63
  5. Step 5: Solve for x
    x = 6,220,814.63/3,407.89
  6. Step 6: Final answer
    x = 1,825.42

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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.