Home / 4,990.14-7,478.49-2,763.72

Finding the Fourth Proportional to 4,990.14, 7,478.49 and 2,763.72

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Solution

The fourth proportional to 4,990.14, 7,478.49 and 2,763.72 is: 4,141.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.14 : 7,478.49 = 2,763.72 : x
  2. Step 2: Convert to fraction form
    4,990.14/7,478.49 = 2,763.72/x
  3. Step 3: Cross multiply
    4,990.14x = 7,478.49 × 2,763.72
  4. Step 4: Simplify right side
    4,990.14x = 20,668,452.38
  5. Step 5: Solve for x
    x = 20,668,452.38/4,990.14
  6. Step 6: Final answer
    x = 4,141.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.