Home / 1,817.30-2,725.89-1,125.16

Finding the Fourth Proportional to 1,817.30, 2,725.89 and 1,125.16

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Solution

The fourth proportional to 1,817.30, 2,725.89 and 1,125.16 is: 1,687.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,817.30 : 2,725.89 = 1,125.16 : x
  2. Step 2: Convert to fraction form
    1,817.30/2,725.89 = 1,125.16/x
  3. Step 3: Cross multiply
    1,817.30x = 2,725.89 × 1,125.16
  4. Step 4: Simplify right side
    1,817.30x = 3,067,051.36
  5. Step 5: Solve for x
    x = 3,067,051.36/1,817.30
  6. Step 6: Final answer
    x = 1,687.69

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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.