Home / 2,168.40-3,246.21-1,344.02

Finding the Fourth Proportional to 2,168.40, 3,246.21 and 1,344.02

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Solution

The fourth proportional to 2,168.40, 3,246.21 and 1,344.02 is: 2,012.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,168.40 : 3,246.21 = 1,344.02 : x
  2. Step 2: Convert to fraction form
    2,168.40/3,246.21 = 1,344.02/x
  3. Step 3: Cross multiply
    2,168.40x = 3,246.21 × 1,344.02
  4. Step 4: Simplify right side
    2,168.40x = 4,362,971.16
  5. Step 5: Solve for x
    x = 4,362,971.16/2,168.40
  6. Step 6: Final answer
    x = 2,012.07

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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.