Home / 2,578.80-3,864.96-1,192.08

Finding the Fourth Proportional to 2,578.80, 3,864.96 and 1,192.08

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Solution

The fourth proportional to 2,578.80, 3,864.96 and 1,192.08 is: 1,786.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.80 : 3,864.96 = 1,192.08 : x
  2. Step 2: Convert to fraction form
    2,578.80/3,864.96 = 1,192.08/x
  3. Step 3: Cross multiply
    2,578.80x = 3,864.96 × 1,192.08
  4. Step 4: Simplify right side
    2,578.80x = 4,607,341.52
  5. Step 5: Solve for x
    x = 4,607,341.52/2,578.80
  6. Step 6: Final answer
    x = 1,786.62

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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.