Home / 5,009.12-6,912.96-2,771.36

Finding the Fourth Proportional to 5,009.12, 6,912.96 and 2,771.36

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Solution

The fourth proportional to 5,009.12, 6,912.96 and 2,771.36 is: 3,824.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,009.12 : 6,912.96 = 2,771.36 : x
  2. Step 2: Convert to fraction form
    5,009.12/6,912.96 = 2,771.36/x
  3. Step 3: Cross multiply
    5,009.12x = 6,912.96 × 2,771.36
  4. Step 4: Simplify right side
    5,009.12x = 19,158,300.83
  5. Step 5: Solve for x
    x = 19,158,300.83/5,009.12
  6. Step 6: Final answer
    x = 3,824.68

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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.