Home / 4,286.79-6,424.52-2,721.87

Finding the Fourth Proportional to 4,286.79, 6,424.52 and 2,721.87

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Solution

The fourth proportional to 4,286.79, 6,424.52 and 2,721.87 is: 4,079.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,286.79 : 6,424.52 = 2,721.87 : x
  2. Step 2: Convert to fraction form
    4,286.79/6,424.52 = 2,721.87/x
  3. Step 3: Cross multiply
    4,286.79x = 6,424.52 × 2,721.87
  4. Step 4: Simplify right side
    4,286.79x = 17,486,694.64
  5. Step 5: Solve for x
    x = 17,486,694.64/4,286.79
  6. Step 6: Final answer
    x = 4,079.20

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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.