Home / 5,218.48-7,819.80-2,095.30

Finding the Fourth Proportional to 5,218.48, 7,819.80 and 2,095.30

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Solution

The fourth proportional to 5,218.48, 7,819.80 and 2,095.30 is: 3,139.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.48 : 7,819.80 = 2,095.30 : x
  2. Step 2: Convert to fraction form
    5,218.48/7,819.80 = 2,095.30/x
  3. Step 3: Cross multiply
    5,218.48x = 7,819.80 × 2,095.30
  4. Step 4: Simplify right side
    5,218.48x = 16,384,826.94
  5. Step 5: Solve for x
    x = 16,384,826.94/5,218.48
  6. Step 6: Final answer
    x = 3,139.77

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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.