Home / 1,192.89-1,785.44-1,079.22

Finding the Fourth Proportional to 1,192.89, 1,785.44 and 1,079.22

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Solution

The fourth proportional to 1,192.89, 1,785.44 and 1,079.22 is: 1,615.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192.89 : 1,785.44 = 1,079.22 : x
  2. Step 2: Convert to fraction form
    1,192.89/1,785.44 = 1,079.22/x
  3. Step 3: Cross multiply
    1,192.89x = 1,785.44 × 1,079.22
  4. Step 4: Simplify right side
    1,192.89x = 1,926,877.16
  5. Step 5: Solve for x
    x = 1,926,877.16/1,192.89
  6. Step 6: Final answer
    x = 1,615.30

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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.