Home / 2,980.27-4,112.41-1,653.66

Finding the Fourth Proportional to 2,980.27, 4,112.41 and 1,653.66

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Solution

The fourth proportional to 2,980.27, 4,112.41 and 1,653.66 is: 2,281.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.27 : 4,112.41 = 1,653.66 : x
  2. Step 2: Convert to fraction form
    2,980.27/4,112.41 = 1,653.66/x
  3. Step 3: Cross multiply
    2,980.27x = 4,112.41 × 1,653.66
  4. Step 4: Simplify right side
    2,980.27x = 6,800,527.92
  5. Step 5: Solve for x
    x = 6,800,527.92/2,980.27
  6. Step 6: Final answer
    x = 2,281.85

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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.