Home / 3,420,276.88-4,718,836.02-1,969,943.28

Finding the Fourth Proportional to 3,420,276.88, 4,718,836.02 and 1,969,943.28

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Solution

The fourth proportional to 3,420,276.88, 4,718,836.02 and 1,969,943.28 is: 2,717,861.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420,276.88 : 4,718,836.02 = 1,969,943.28 : x
  2. Step 2: Convert to fraction form
    3,420,276.88/4,718,836.02 = 1,969,943.28/x
  3. Step 3: Cross multiply
    3,420,276.88x = 4,718,836.02 × 1,969,943.28
  4. Step 4: Simplify right side
    3,420,276.88x = 9,295,839,307,020.95
  5. Step 5: Solve for x
    x = 9,295,839,307,020.95/3,420,276.88
  6. Step 6: Final answer
    x = 2,717,861.63

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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.