Home / 4,211.13-6,315.79-1,578.54

Finding the Fourth Proportional to 4,211.13, 6,315.79 and 1,578.54

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Solution

The fourth proportional to 4,211.13, 6,315.79 and 1,578.54 is: 2,367.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,211.13 : 6,315.79 = 1,578.54 : x
  2. Step 2: Convert to fraction form
    4,211.13/6,315.79 = 1,578.54/x
  3. Step 3: Cross multiply
    4,211.13x = 6,315.79 × 1,578.54
  4. Step 4: Simplify right side
    4,211.13x = 9,969,727.15
  5. Step 5: Solve for x
    x = 9,969,727.15/4,211.13
  6. Step 6: Final answer
    x = 2,367.47

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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.