Home / 2,889,891.88-3,986,538.78-1,786,970.68

Finding the Fourth Proportional to 2,889,891.88, 3,986,538.78 and 1,786,970.68

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Solution

The fourth proportional to 2,889,891.88, 3,986,538.78 and 1,786,970.68 is: 2,465,084.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,889,891.88 : 3,986,538.78 = 1,786,970.68 : x
  2. Step 2: Convert to fraction form
    2,889,891.88/3,986,538.78 = 1,786,970.68/x
  3. Step 3: Cross multiply
    2,889,891.88x = 3,986,538.78 × 1,786,970.68
  4. Step 4: Simplify right side
    2,889,891.88x = 7,123,827,914,542.97
  5. Step 5: Solve for x
    x = 7,123,827,914,542.97/2,889,891.88
  6. Step 6: Final answer
    x = 2,465,084.58

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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.