Home / 2,076.30-3,112.09-1,296.65

Finding the Fourth Proportional to 2,076.30, 3,112.09 and 1,296.65

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Solution

The fourth proportional to 2,076.30, 3,112.09 and 1,296.65 is: 1,943.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,076.30 : 3,112.09 = 1,296.65 : x
  2. Step 2: Convert to fraction form
    2,076.30/3,112.09 = 1,296.65/x
  3. Step 3: Cross multiply
    2,076.30x = 3,112.09 × 1,296.65
  4. Step 4: Simplify right side
    2,076.30x = 4,035,296.04
  5. Step 5: Solve for x
    x = 4,035,296.04/2,076.30
  6. Step 6: Final answer
    x = 1,943.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.