Home / 2,828.21-4,238.65-1,578.77

Finding the Fourth Proportional to 2,828.21, 4,238.65 and 1,578.77

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Solution

The fourth proportional to 2,828.21, 4,238.65 and 1,578.77 is: 2,366.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,828.21 : 4,238.65 = 1,578.77 : x
  2. Step 2: Convert to fraction form
    2,828.21/4,238.65 = 1,578.77/x
  3. Step 3: Cross multiply
    2,828.21x = 4,238.65 × 1,578.77
  4. Step 4: Simplify right side
    2,828.21x = 6,691,851.07
  5. Step 5: Solve for x
    x = 6,691,851.07/2,828.21
  6. Step 6: Final answer
    x = 2,366.11

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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.