Home / 4,119.21-6,180.71-1,929.38

Finding the Fourth Proportional to 4,119.21, 6,180.71 and 1,929.38

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Solution

The fourth proportional to 4,119.21, 6,180.71 and 1,929.38 is: 2,894.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,119.21 : 6,180.71 = 1,929.38 : x
  2. Step 2: Convert to fraction form
    4,119.21/6,180.71 = 1,929.38/x
  3. Step 3: Cross multiply
    4,119.21x = 6,180.71 × 1,929.38
  4. Step 4: Simplify right side
    4,119.21x = 11,924,897.71
  5. Step 5: Solve for x
    x = 11,924,897.71/4,119.21
  6. Step 6: Final answer
    x = 2,894.95

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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.