Home / 5,009.45-6,912.84-2,771.42

Finding the Fourth Proportional to 5,009.45, 6,912.84 and 2,771.42

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Solution

The fourth proportional to 5,009.45, 6,912.84 and 2,771.42 is: 3,824.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,009.45 : 6,912.84 = 2,771.42 : x
  2. Step 2: Convert to fraction form
    5,009.45/6,912.84 = 2,771.42/x
  3. Step 3: Cross multiply
    5,009.45x = 6,912.84 × 2,771.42
  4. Step 4: Simplify right side
    5,009.45x = 19,158,358.86
  5. Step 5: Solve for x
    x = 19,158,358.86/5,009.45
  6. Step 6: Final answer
    x = 3,824.45

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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.