Home / 5,142.33-7,713.49-1,855.37

Finding the Fourth Proportional to 5,142.33, 7,713.49 and 1,855.37

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Solution

The fourth proportional to 5,142.33, 7,713.49 and 1,855.37 is: 2,783.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,142.33 : 7,713.49 = 1,855.37 : x
  2. Step 2: Convert to fraction form
    5,142.33/7,713.49 = 1,855.37/x
  3. Step 3: Cross multiply
    5,142.33x = 7,713.49 × 1,855.37
  4. Step 4: Simplify right side
    5,142.33x = 14,311,392.59
  5. Step 5: Solve for x
    x = 14,311,392.59/5,142.33
  6. Step 6: Final answer
    x = 2,783.06

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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.