Home / 2,069.50-2,855.97-1,138.06

Finding the Fourth Proportional to 2,069.50, 2,855.97 and 1,138.06

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Solution

The fourth proportional to 2,069.50, 2,855.97 and 1,138.06 is: 1,570.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,069.50 : 2,855.97 = 1,138.06 : x
  2. Step 2: Convert to fraction form
    2,069.50/2,855.97 = 1,138.06/x
  3. Step 3: Cross multiply
    2,069.50x = 2,855.97 × 1,138.06
  4. Step 4: Simplify right side
    2,069.50x = 3,250,265.22
  5. Step 5: Solve for x
    x = 3,250,265.22/2,069.50
  6. Step 6: Final answer
    x = 1,570.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.