Home / 1,690.44-2,330.25-1,192.29

Finding the Fourth Proportional to 1,690.44, 2,330.25 and 1,192.29

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Solution

The fourth proportional to 1,690.44, 2,330.25 and 1,192.29 is: 1,643.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690.44 : 2,330.25 = 1,192.29 : x
  2. Step 2: Convert to fraction form
    1,690.44/2,330.25 = 1,192.29/x
  3. Step 3: Cross multiply
    1,690.44x = 2,330.25 × 1,192.29
  4. Step 4: Simplify right side
    1,690.44x = 2,778,333.77
  5. Step 5: Solve for x
    x = 2,778,333.77/1,690.44
  6. Step 6: Final answer
    x = 1,643.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.