Home / 4,719.35-7,081.45-2,638.05

Finding the Fourth Proportional to 4,719.35, 7,081.45 and 2,638.05

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Solution

The fourth proportional to 4,719.35, 7,081.45 and 2,638.05 is: 3,958.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,719.35 : 7,081.45 = 2,638.05 : x
  2. Step 2: Convert to fraction form
    4,719.35/7,081.45 = 2,638.05/x
  3. Step 3: Cross multiply
    4,719.35x = 7,081.45 × 2,638.05
  4. Step 4: Simplify right side
    4,719.35x = 18,681,219.17
  5. Step 5: Solve for x
    x = 18,681,219.17/4,719.35
  6. Step 6: Final answer
    x = 3,958.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.