Home / 2,782.14-4,154.67-2,620.14

Finding the Fourth Proportional to 2,782.14, 4,154.67 and 2,620.14

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Solution

The fourth proportional to 2,782.14, 4,154.67 and 2,620.14 is: 3,912.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.14 : 4,154.67 = 2,620.14 : x
  2. Step 2: Convert to fraction form
    2,782.14/4,154.67 = 2,620.14/x
  3. Step 3: Cross multiply
    2,782.14x = 4,154.67 × 2,620.14
  4. Step 4: Simplify right side
    2,782.14x = 10,885,817.05
  5. Step 5: Solve for x
    x = 10,885,817.05/2,782.14
  6. Step 6: Final answer
    x = 3,912.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.