Home / 4,678.97-6,454.10-2,789.34

Finding the Fourth Proportional to 4,678.97, 6,454.10 and 2,789.34

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Solution

The fourth proportional to 4,678.97, 6,454.10 and 2,789.34 is: 3,847.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.97 : 6,454.10 = 2,789.34 : x
  2. Step 2: Convert to fraction form
    4,678.97/6,454.10 = 2,789.34/x
  3. Step 3: Cross multiply
    4,678.97x = 6,454.10 × 2,789.34
  4. Step 4: Simplify right side
    4,678.97x = 18,002,665.35
  5. Step 5: Solve for x
    x = 18,002,665.35/4,678.97
  6. Step 6: Final answer
    x = 3,847.57

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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.