Home / 2,819.88-4,218.30-2,359.08

Finding the Fourth Proportional to 2,819.88, 4,218.30 and 2,359.08

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Solution

The fourth proportional to 2,819.88, 4,218.30 and 2,359.08 is: 3,528.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.88 : 4,218.30 = 2,359.08 : x
  2. Step 2: Convert to fraction form
    2,819.88/4,218.30 = 2,359.08/x
  3. Step 3: Cross multiply
    2,819.88x = 4,218.30 × 2,359.08
  4. Step 4: Simplify right side
    2,819.88x = 9,951,307.16
  5. Step 5: Solve for x
    x = 9,951,307.16/2,819.88
  6. Step 6: Final answer
    x = 3,528.98

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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.