Home / 1,908.83-2,860.50-1,085.36

Finding the Fourth Proportional to 1,908.83, 2,860.50 and 1,085.36

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Solution

The fourth proportional to 1,908.83, 2,860.50 and 1,085.36 is: 1,626.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.83 : 2,860.50 = 1,085.36 : x
  2. Step 2: Convert to fraction form
    1,908.83/2,860.50 = 1,085.36/x
  3. Step 3: Cross multiply
    1,908.83x = 2,860.50 × 1,085.36
  4. Step 4: Simplify right side
    1,908.83x = 3,104,657.98
  5. Step 5: Solve for x
    x = 3,104,657.98/1,908.83
  6. Step 6: Final answer
    x = 1,626.48

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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.