Home / 5,384.68-8,078.33-1,874.18

Finding the Fourth Proportional to 5,384.68, 8,078.33 and 1,874.18

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Solution

The fourth proportional to 5,384.68, 8,078.33 and 1,874.18 is: 2,811.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,384.68 : 8,078.33 = 1,874.18 : x
  2. Step 2: Convert to fraction form
    5,384.68/8,078.33 = 1,874.18/x
  3. Step 3: Cross multiply
    5,384.68x = 8,078.33 × 1,874.18
  4. Step 4: Simplify right side
    5,384.68x = 15,140,269.40
  5. Step 5: Solve for x
    x = 15,140,269.40/5,384.68
  6. Step 6: Final answer
    x = 2,811.73

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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.