Home / 1,474.82-2,035.26-811.69

Finding the Fourth Proportional to 1,474.82, 2,035.26 and 811.69

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Solution

The fourth proportional to 1,474.82, 2,035.26 and 811.69 is: 1,120.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,474.82 : 2,035.26 = 811.69 : x
  2. Step 2: Convert to fraction form
    1,474.82/2,035.26 = 811.69/x
  3. Step 3: Cross multiply
    1,474.82x = 2,035.26 × 811.69
  4. Step 4: Simplify right side
    1,474.82x = 1,651,992.04
  5. Step 5: Solve for x
    x = 1,651,992.04/1,474.82
  6. Step 6: Final answer
    x = 1,120.13

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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.