Home / 4,890-6,748.21-2,794.12

Finding the Fourth Proportional to 4,890, 6,748.21 and 2,794.12

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Solution

The fourth proportional to 4,890, 6,748.21 and 2,794.12 is: 3,855.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890 : 6,748.21 = 2,794.12 : x
  2. Step 2: Convert to fraction form
    4,890/6,748.21 = 2,794.12/x
  3. Step 3: Cross multiply
    4,890x = 6,748.21 × 2,794.12
  4. Step 4: Simplify right side
    4,890x = 18,855,308.53
  5. Step 5: Solve for x
    x = 18,855,308.53/4,890
  6. Step 6: Final answer
    x = 3,855.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.