Home / 1,855.14-2,559.78-1,147.08

Finding the Fourth Proportional to 1,855.14, 2,559.78 and 1,147.08

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Solution

The fourth proportional to 1,855.14, 2,559.78 and 1,147.08 is: 1,582.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,855.14 : 2,559.78 = 1,147.08 : x
  2. Step 2: Convert to fraction form
    1,855.14/2,559.78 = 1,147.08/x
  3. Step 3: Cross multiply
    1,855.14x = 2,559.78 × 1,147.08
  4. Step 4: Simplify right side
    1,855.14x = 2,936,272.44
  5. Step 5: Solve for x
    x = 2,936,272.44/1,855.14
  6. Step 6: Final answer
    x = 1,582.78

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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.