Home / 2,913.98-4,022.79-1,974.74

Finding the Fourth Proportional to 2,913.98, 4,022.79 and 1,974.74

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Solution

The fourth proportional to 2,913.98, 4,022.79 and 1,974.74 is: 2,726.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.98 : 4,022.79 = 1,974.74 : x
  2. Step 2: Convert to fraction form
    2,913.98/4,022.79 = 1,974.74/x
  3. Step 3: Cross multiply
    2,913.98x = 4,022.79 × 1,974.74
  4. Step 4: Simplify right side
    2,913.98x = 7,943,944.39
  5. Step 5: Solve for x
    x = 7,943,944.39/2,913.98
  6. Step 6: Final answer
    x = 2,726.15

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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.