Home / 1,192.74-1,792.20-1,118.94

Finding the Fourth Proportional to 1,192.74, 1,792.20 and 1,118.94

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Solution

The fourth proportional to 1,192.74, 1,792.20 and 1,118.94 is: 1,681.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192.74 : 1,792.20 = 1,118.94 : x
  2. Step 2: Convert to fraction form
    1,192.74/1,792.20 = 1,118.94/x
  3. Step 3: Cross multiply
    1,192.74x = 1,792.20 × 1,118.94
  4. Step 4: Simplify right side
    1,192.74x = 2,005,364.27
  5. Step 5: Solve for x
    x = 2,005,364.27/1,192.74
  6. Step 6: Final answer
    x = 1,681.31

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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.