Home / 4,940.70-6,817.56-2,815.92

Finding the Fourth Proportional to 4,940.70, 6,817.56 and 2,815.92

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Solution

The fourth proportional to 4,940.70, 6,817.56 and 2,815.92 is: 3,885.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,940.70 : 6,817.56 = 2,815.92 : x
  2. Step 2: Convert to fraction form
    4,940.70/6,817.56 = 2,815.92/x
  3. Step 3: Cross multiply
    4,940.70x = 6,817.56 × 2,815.92
  4. Step 4: Simplify right side
    4,940.70x = 19,197,703.56
  5. Step 5: Solve for x
    x = 19,197,703.56/4,940.70
  6. Step 6: Final answer
    x = 3,885.62

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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.