Home / 2,190,137.07-3,022,450.10-1,210,139.25

Finding the Fourth Proportional to 2,190,137.07, 3,022,450.10 and 1,210,139.25

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Solution

The fourth proportional to 2,190,137.07, 3,022,450.10 and 1,210,139.25 is: 1,670,025.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,137.07 : 3,022,450.10 = 1,210,139.25 : x
  2. Step 2: Convert to fraction form
    2,190,137.07/3,022,450.10 = 1,210,139.25/x
  3. Step 3: Cross multiply
    2,190,137.07x = 3,022,450.10 × 1,210,139.25
  4. Step 4: Simplify right side
    2,190,137.07x = 3,657,585,491,125.73
  5. Step 5: Solve for x
    x = 3,657,585,491,125.73/2,190,137.07
  6. Step 6: Final answer
    x = 1,670,025.84

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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.