Home / 4,678.62-6,458.82-2,910.80

Finding the Fourth Proportional to 4,678.62, 6,458.82 and 2,910.80

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Solution

The fourth proportional to 4,678.62, 6,458.82 and 2,910.80 is: 4,018.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.62 : 6,458.82 = 2,910.80 : x
  2. Step 2: Convert to fraction form
    4,678.62/6,458.82 = 2,910.80/x
  3. Step 3: Cross multiply
    4,678.62x = 6,458.82 × 2,910.80
  4. Step 4: Simplify right side
    4,678.62x = 18,800,333.26
  5. Step 5: Solve for x
    x = 18,800,333.26/4,678.62
  6. Step 6: Final answer
    x = 4,018.35

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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.