Home / 6,419.79-9,630.71-2,722.05

Finding the Fourth Proportional to 6,419.79, 9,630.71 and 2,722.05

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Solution

The fourth proportional to 6,419.79, 9,630.71 and 2,722.05 is: 4,083.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,419.79 : 9,630.71 = 2,722.05 : x
  2. Step 2: Convert to fraction form
    6,419.79/9,630.71 = 2,722.05/x
  3. Step 3: Cross multiply
    6,419.79x = 9,630.71 × 2,722.05
  4. Step 4: Simplify right side
    6,419.79x = 26,215,260.55
  5. Step 5: Solve for x
    x = 26,215,260.55/6,419.79
  6. Step 6: Final answer
    x = 4,083.51

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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.