Home / 3,428,319.89-4,731,563.40-2,121,990.95

Finding the Fourth Proportional to 3,428,319.89, 4,731,563.40 and 2,121,990.95

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Solution

The fourth proportional to 3,428,319.89, 4,731,563.40 and 2,121,990.95 is: 2,928,645.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428,319.89 : 4,731,563.40 = 2,121,990.95 : x
  2. Step 2: Convert to fraction form
    3,428,319.89/4,731,563.40 = 2,121,990.95/x
  3. Step 3: Cross multiply
    3,428,319.89x = 4,731,563.40 × 2,121,990.95
  4. Step 4: Simplify right side
    3,428,319.89x = 10,040,334,690,493.41
  5. Step 5: Solve for x
    x = 10,040,334,690,493.41/3,428,319.89
  6. Step 6: Final answer
    x = 2,928,645.81

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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.