Home / 2,189,141.34-3,020,986.44-1,222,288.08

Finding the Fourth Proportional to 2,189,141.34, 3,020,986.44 and 1,222,288.08

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Solution

The fourth proportional to 2,189,141.34, 3,020,986.44 and 1,222,288.08 is: 1,686,741.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,141.34 : 3,020,986.44 = 1,222,288.08 : x
  2. Step 2: Convert to fraction form
    2,189,141.34/3,020,986.44 = 1,222,288.08/x
  3. Step 3: Cross multiply
    2,189,141.34x = 3,020,986.44 × 1,222,288.08
  4. Step 4: Simplify right side
    2,189,141.34x = 3,692,515,715,453.64
  5. Step 5: Solve for x
    x = 3,692,515,715,453.64/2,189,141.34
  6. Step 6: Final answer
    x = 1,686,741.58

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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.