Home / 4,279.84-6,414.29-2,820.02

Finding the Fourth Proportional to 4,279.84, 6,414.29 and 2,820.02

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Solution

The fourth proportional to 4,279.84, 6,414.29 and 2,820.02 is: 4,226.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.84 : 6,414.29 = 2,820.02 : x
  2. Step 2: Convert to fraction form
    4,279.84/6,414.29 = 2,820.02/x
  3. Step 3: Cross multiply
    4,279.84x = 6,414.29 × 2,820.02
  4. Step 4: Simplify right side
    4,279.84x = 18,088,390.49
  5. Step 5: Solve for x
    x = 18,088,390.49/4,279.84
  6. Step 6: Final answer
    x = 4,226.42

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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.