Home / 4,929.45-7,395.89-3,078.38

Finding the Fourth Proportional to 4,929.45, 7,395.89 and 3,078.38

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Solution

The fourth proportional to 4,929.45, 7,395.89 and 3,078.38 is: 4,618.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,929.45 : 7,395.89 = 3,078.38 : x
  2. Step 2: Convert to fraction form
    4,929.45/7,395.89 = 3,078.38/x
  3. Step 3: Cross multiply
    4,929.45x = 7,395.89 × 3,078.38
  4. Step 4: Simplify right side
    4,929.45x = 22,767,307.49
  5. Step 5: Solve for x
    x = 22,767,307.49/4,929.45
  6. Step 6: Final answer
    x = 4,618.63

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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.