Home / 4,913.99-6,780.12-2,789.04

Finding the Fourth Proportional to 4,913.99, 6,780.12 and 2,789.04

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Solution

The fourth proportional to 4,913.99, 6,780.12 and 2,789.04 is: 3,848.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,913.99 : 6,780.12 = 2,789.04 : x
  2. Step 2: Convert to fraction form
    4,913.99/6,780.12 = 2,789.04/x
  3. Step 3: Cross multiply
    4,913.99x = 6,780.12 × 2,789.04
  4. Step 4: Simplify right side
    4,913.99x = 18,910,025.88
  5. Step 5: Solve for x
    x = 18,910,025.88/4,913.99
  6. Step 6: Final answer
    x = 3,848.21

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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.