Home / 4,721.84-7,078.90-2,894

Finding the Fourth Proportional to 4,721.84, 7,078.90 and 2,894

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Solution

The fourth proportional to 4,721.84, 7,078.90 and 2,894 is: 4,338.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,721.84 : 7,078.90 = 2,894 : x
  2. Step 2: Convert to fraction form
    4,721.84/7,078.90 = 2,894/x
  3. Step 3: Cross multiply
    4,721.84x = 7,078.90 × 2,894
  4. Step 4: Simplify right side
    4,721.84x = 20,486,336.60
  5. Step 5: Solve for x
    x = 20,486,336.60/4,721.84
  6. Step 6: Final answer
    x = 4,338.63

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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.