Home / 2,097,186.80-3,139,559.40-1,388,015.60

Finding the Fourth Proportional to 2,097,186.80, 3,139,559.40 and 1,388,015.60

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Solution

The fourth proportional to 2,097,186.80, 3,139,559.40 and 1,388,015.60 is: 2,077,906.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,097,186.80 : 3,139,559.40 = 1,388,015.60 : x
  2. Step 2: Convert to fraction form
    2,097,186.80/3,139,559.40 = 1,388,015.60/x
  3. Step 3: Cross multiply
    2,097,186.80x = 3,139,559.40 × 1,388,015.60
  4. Step 4: Simplify right side
    2,097,186.80x = 4,357,757,424,326.64
  5. Step 5: Solve for x
    x = 4,357,757,424,326.64/2,097,186.80
  6. Step 6: Final answer
    x = 2,077,906.19

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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.