Home / 1,918.08-2,879.06-1,293.30

Finding the Fourth Proportional to 1,918.08, 2,879.06 and 1,293.30

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Solution

The fourth proportional to 1,918.08, 2,879.06 and 1,293.30 is: 1,941.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918.08 : 2,879.06 = 1,293.30 : x
  2. Step 2: Convert to fraction form
    1,918.08/2,879.06 = 1,293.30/x
  3. Step 3: Cross multiply
    1,918.08x = 2,879.06 × 1,293.30
  4. Step 4: Simplify right side
    1,918.08x = 3,723,488.30
  5. Step 5: Solve for x
    x = 3,723,488.30/1,918.08
  6. Step 6: Final answer
    x = 1,941.26

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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.