Home / 5,415.04-8,124.18-2,819.80

Finding the Fourth Proportional to 5,415.04, 8,124.18 and 2,819.80

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Solution

The fourth proportional to 5,415.04, 8,124.18 and 2,819.80 is: 4,230.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.04 : 8,124.18 = 2,819.80 : x
  2. Step 2: Convert to fraction form
    5,415.04/8,124.18 = 2,819.80/x
  3. Step 3: Cross multiply
    5,415.04x = 8,124.18 × 2,819.80
  4. Step 4: Simplify right side
    5,415.04x = 22,908,562.76
  5. Step 5: Solve for x
    x = 22,908,562.76/5,415.04
  6. Step 6: Final answer
    x = 4,230.54

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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.