Home / 2,979.18-4,112.63-2,036.50

Finding the Fourth Proportional to 2,979.18, 4,112.63 and 2,036.50

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Solution

The fourth proportional to 2,979.18, 4,112.63 and 2,036.50 is: 2,811.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.18 : 4,112.63 = 2,036.50 : x
  2. Step 2: Convert to fraction form
    2,979.18/4,112.63 = 2,036.50/x
  3. Step 3: Cross multiply
    2,979.18x = 4,112.63 × 2,036.50
  4. Step 4: Simplify right side
    2,979.18x = 8,375,371.00
  5. Step 5: Solve for x
    x = 8,375,371.00/2,979.18
  6. Step 6: Final answer
    x = 2,811.30

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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.