Home / 2,579.84-3,869.76-2,194.28

Finding the Fourth Proportional to 2,579.84, 3,869.76 and 2,194.28

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Solution

The fourth proportional to 2,579.84, 3,869.76 and 2,194.28 is: 3,291.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579.84 : 3,869.76 = 2,194.28 : x
  2. Step 2: Convert to fraction form
    2,579.84/3,869.76 = 2,194.28/x
  3. Step 3: Cross multiply
    2,579.84x = 3,869.76 × 2,194.28
  4. Step 4: Simplify right side
    2,579.84x = 8,491,336.97
  5. Step 5: Solve for x
    x = 8,491,336.97/2,579.84
  6. Step 6: Final answer
    x = 3,291.42

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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.