Home / 1,518.24-2,095.25-855.30

Finding the Fourth Proportional to 1,518.24, 2,095.25 and 855.30

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Solution

The fourth proportional to 1,518.24, 2,095.25 and 855.30 is: 1,180.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518.24 : 2,095.25 = 855.30 : x
  2. Step 2: Convert to fraction form
    1,518.24/2,095.25 = 855.30/x
  3. Step 3: Cross multiply
    1,518.24x = 2,095.25 × 855.30
  4. Step 4: Simplify right side
    1,518.24x = 1,792,063.05
  5. Step 5: Solve for x
    x = 1,792,063.05/1,518.24
  6. Step 6: Final answer
    x = 1,180.36

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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.