Home / 2,389.86-3,568.70-1,951.97

Finding the Fourth Proportional to 2,389.86, 3,568.70 and 1,951.97

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Solution

The fourth proportional to 2,389.86, 3,568.70 and 1,951.97 is: 2,914.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.86 : 3,568.70 = 1,951.97 : x
  2. Step 2: Convert to fraction form
    2,389.86/3,568.70 = 1,951.97/x
  3. Step 3: Cross multiply
    2,389.86x = 3,568.70 × 1,951.97
  4. Step 4: Simplify right side
    2,389.86x = 6,965,967.74
  5. Step 5: Solve for x
    x = 6,965,967.74/2,389.86
  6. Step 6: Final answer
    x = 2,914.80

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.