Home / 2,190,135.20-3,022,447.52-1,210,137.38

Finding the Fourth Proportional to 2,190,135.20, 3,022,447.52 and 1,210,137.38

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Solution

The fourth proportional to 2,190,135.20, 3,022,447.52 and 1,210,137.38 is: 1,670,023.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,135.20 : 3,022,447.52 = 1,210,137.38 : x
  2. Step 2: Convert to fraction form
    2,190,135.20/3,022,447.52 = 1,210,137.38/x
  3. Step 3: Cross multiply
    2,190,135.20x = 3,022,447.52 × 1,210,137.38
  4. Step 4: Simplify right side
    2,190,135.20x = 3,657,576,701,877.37
  5. Step 5: Solve for x
    x = 3,657,576,701,877.37/2,190,135.20
  6. Step 6: Final answer
    x = 1,670,023.25

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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.