Home / 4,212.59-6,315.45-1,578.61

Finding the Fourth Proportional to 4,212.59, 6,315.45 and 1,578.61

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Solution

The fourth proportional to 4,212.59, 6,315.45 and 1,578.61 is: 2,366.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.59 : 6,315.45 = 1,578.61 : x
  2. Step 2: Convert to fraction form
    4,212.59/6,315.45 = 1,578.61/x
  3. Step 3: Cross multiply
    4,212.59x = 6,315.45 × 1,578.61
  4. Step 4: Simplify right side
    4,212.59x = 9,969,634.50
  5. Step 5: Solve for x
    x = 9,969,634.50/4,212.59
  6. Step 6: Final answer
    x = 2,366.63

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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.