Home / 2,114.13-2,918.91-1,619.31

Finding the Fourth Proportional to 2,114.13, 2,918.91 and 1,619.31

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Solution

The fourth proportional to 2,114.13, 2,918.91 and 1,619.31 is: 2,235.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,114.13 : 2,918.91 = 1,619.31 : x
  2. Step 2: Convert to fraction form
    2,114.13/2,918.91 = 1,619.31/x
  3. Step 3: Cross multiply
    2,114.13x = 2,918.91 × 1,619.31
  4. Step 4: Simplify right side
    2,114.13x = 4,726,620.15
  5. Step 5: Solve for x
    x = 4,726,620.15/2,114.13
  6. Step 6: Final answer
    x = 2,235.73

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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.