Home / 3,407.14-5,112.42-1,328.50

Finding the Fourth Proportional to 3,407.14, 5,112.42 and 1,328.50

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Solution

The fourth proportional to 3,407.14, 5,112.42 and 1,328.50 is: 1,993.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,407.14 : 5,112.42 = 1,328.50 : x
  2. Step 2: Convert to fraction form
    3,407.14/5,112.42 = 1,328.50/x
  3. Step 3: Cross multiply
    3,407.14x = 5,112.42 × 1,328.50
  4. Step 4: Simplify right side
    3,407.14x = 6,791,849.97
  5. Step 5: Solve for x
    x = 6,791,849.97/3,407.14
  6. Step 6: Final answer
    x = 1,993.42

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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.