Home / 5,134.85-7,086.10-2,777

Finding the Fourth Proportional to 5,134.85, 7,086.10 and 2,777

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Solution

The fourth proportional to 5,134.85, 7,086.10 and 2,777 is: 3,832.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,134.85 : 7,086.10 = 2,777 : x
  2. Step 2: Convert to fraction form
    5,134.85/7,086.10 = 2,777/x
  3. Step 3: Cross multiply
    5,134.85x = 7,086.10 × 2,777
  4. Step 4: Simplify right side
    5,134.85x = 19,678,099.70
  5. Step 5: Solve for x
    x = 19,678,099.70/5,134.85
  6. Step 6: Final answer
    x = 3,832.26

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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.