Home / 1,914.23-2,869.53-1,218.95

Finding the Fourth Proportional to 1,914.23, 2,869.53 and 1,218.95

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Solution

The fourth proportional to 1,914.23, 2,869.53 and 1,218.95 is: 1,827.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,914.23 : 2,869.53 = 1,218.95 : x
  2. Step 2: Convert to fraction form
    1,914.23/2,869.53 = 1,218.95/x
  3. Step 3: Cross multiply
    1,914.23x = 2,869.53 × 1,218.95
  4. Step 4: Simplify right side
    1,914.23x = 3,497,805.44
  5. Step 5: Solve for x
    x = 3,497,805.44/1,914.23
  6. Step 6: Final answer
    x = 1,827.26

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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.