Home / 5,071.79-6,999.43-3,081.96

Finding the Fourth Proportional to 5,071.79, 6,999.43 and 3,081.96

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Solution

The fourth proportional to 5,071.79, 6,999.43 and 3,081.96 is: 4,253.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,071.79 : 6,999.43 = 3,081.96 : x
  2. Step 2: Convert to fraction form
    5,071.79/6,999.43 = 3,081.96/x
  3. Step 3: Cross multiply
    5,071.79x = 6,999.43 × 3,081.96
  4. Step 4: Simplify right side
    5,071.79x = 21,571,958.20
  5. Step 5: Solve for x
    x = 21,571,958.20/5,071.79
  6. Step 6: Final answer
    x = 4,253.32

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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.