Home / 2,021,178.20-3,028,268.10-1,310,840.60

Finding the Fourth Proportional to 2,021,178.20, 3,028,268.10 and 1,310,840.60

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Solution

The fourth proportional to 2,021,178.20, 3,028,268.10 and 1,310,840.60 is: 1,963,991.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021,178.20 : 3,028,268.10 = 1,310,840.60 : x
  2. Step 2: Convert to fraction form
    2,021,178.20/3,028,268.10 = 1,310,840.60/x
  3. Step 3: Cross multiply
    2,021,178.20x = 3,028,268.10 × 1,310,840.60
  4. Step 4: Simplify right side
    2,021,178.20x = 3,969,576,773,164.86
  5. Step 5: Solve for x
    x = 3,969,576,773,164.86/2,021,178.20
  6. Step 6: Final answer
    x = 1,963,991.48

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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.