Home / 2,688.88-4,036.26-2,137.14

Finding the Fourth Proportional to 2,688.88, 4,036.26 and 2,137.14

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Solution

The fourth proportional to 2,688.88, 4,036.26 and 2,137.14 is: 3,208.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.88 : 4,036.26 = 2,137.14 : x
  2. Step 2: Convert to fraction form
    2,688.88/4,036.26 = 2,137.14/x
  3. Step 3: Cross multiply
    2,688.88x = 4,036.26 × 2,137.14
  4. Step 4: Simplify right side
    2,688.88x = 8,626,052.70
  5. Step 5: Solve for x
    x = 8,626,052.70/2,688.88
  6. Step 6: Final answer
    x = 3,208.05

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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.