Home / 2,980.88-4,112.19-2,097.17

Finding the Fourth Proportional to 2,980.88, 4,112.19 and 2,097.17

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Solution

The fourth proportional to 2,980.88, 4,112.19 and 2,097.17 is: 2,893.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.88 : 4,112.19 = 2,097.17 : x
  2. Step 2: Convert to fraction form
    2,980.88/4,112.19 = 2,097.17/x
  3. Step 3: Cross multiply
    2,980.88x = 4,112.19 × 2,097.17
  4. Step 4: Simplify right side
    2,980.88x = 8,623,940.94
  5. Step 5: Solve for x
    x = 8,623,940.94/2,980.88
  6. Step 6: Final answer
    x = 2,893.09

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1.5x scale

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.