Home / 1,192.26-1,787.75-370.21

Finding the Fourth Proportional to 1,192.26, 1,787.75 and 370.21

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Solution

The fourth proportional to 1,192.26, 1,787.75 and 370.21 is: 555.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192.26 : 1,787.75 = 370.21 : x
  2. Step 2: Convert to fraction form
    1,192.26/1,787.75 = 370.21/x
  3. Step 3: Cross multiply
    1,192.26x = 1,787.75 × 370.21
  4. Step 4: Simplify right side
    1,192.26x = 661,842.93
  5. Step 5: Solve for x
    x = 661,842.93/1,192.26
  6. Step 6: Final answer
    x = 555.12

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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.