Home / 2,986.83-4,123.67-1,924.97

Finding the Fourth Proportional to 2,986.83, 4,123.67 and 1,924.97

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Solution

The fourth proportional to 2,986.83, 4,123.67 and 1,924.97 is: 2,657.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986.83 : 4,123.67 = 1,924.97 : x
  2. Step 2: Convert to fraction form
    2,986.83/4,123.67 = 1,924.97/x
  3. Step 3: Cross multiply
    2,986.83x = 4,123.67 × 1,924.97
  4. Step 4: Simplify right side
    2,986.83x = 7,937,910.80
  5. Step 5: Solve for x
    x = 7,937,910.80/2,986.83
  6. Step 6: Final answer
    x = 2,657.64

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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.