Home / 1,511.63-2,085.99-914.27

Finding the Fourth Proportional to 1,511.63, 2,085.99 and 914.27

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Solution

The fourth proportional to 1,511.63, 2,085.99 and 914.27 is: 1,261.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.63 : 2,085.99 = 914.27 : x
  2. Step 2: Convert to fraction form
    1,511.63/2,085.99 = 914.27/x
  3. Step 3: Cross multiply
    1,511.63x = 2,085.99 × 914.27
  4. Step 4: Simplify right side
    1,511.63x = 1,907,147.65
  5. Step 5: Solve for x
    x = 1,907,147.65/1,511.63
  6. Step 6: Final answer
    x = 1,261.65

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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.