Home / 4,211.82-6,315.66-1,579.72

Finding the Fourth Proportional to 4,211.82, 6,315.66 and 1,579.72

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Solution

The fourth proportional to 4,211.82, 6,315.66 and 1,579.72 is: 2,368.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,211.82 : 6,315.66 = 1,579.72 : x
  2. Step 2: Convert to fraction form
    4,211.82/6,315.66 = 1,579.72/x
  3. Step 3: Cross multiply
    4,211.82x = 6,315.66 × 1,579.72
  4. Step 4: Simplify right side
    4,211.82x = 9,976,974.42
  5. Step 5: Solve for x
    x = 9,976,974.42/4,211.82
  6. Step 6: Final answer
    x = 2,368.80

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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.