Home / 5,919.47-8,878.54-2,119.96

Finding the Fourth Proportional to 5,919.47, 8,878.54 and 2,119.96

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Solution

The fourth proportional to 5,919.47, 8,878.54 and 2,119.96 is: 3,179.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,919.47 : 8,878.54 = 2,119.96 : x
  2. Step 2: Convert to fraction form
    5,919.47/8,878.54 = 2,119.96/x
  3. Step 3: Cross multiply
    5,919.47x = 8,878.54 × 2,119.96
  4. Step 4: Simplify right side
    5,919.47x = 18,822,094.67
  5. Step 5: Solve for x
    x = 18,822,094.67/5,919.47
  6. Step 6: Final answer
    x = 3,179.69

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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.