Home / 1,788.96-2,678.46-1,171.08

Finding the Fourth Proportional to 1,788.96, 2,678.46 and 1,171.08

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Solution

The fourth proportional to 1,788.96, 2,678.46 and 1,171.08 is: 1,753.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788.96 : 2,678.46 = 1,171.08 : x
  2. Step 2: Convert to fraction form
    1,788.96/2,678.46 = 1,171.08/x
  3. Step 3: Cross multiply
    1,788.96x = 2,678.46 × 1,171.08
  4. Step 4: Simplify right side
    1,788.96x = 3,136,690.94
  5. Step 5: Solve for x
    x = 3,136,690.94/1,788.96
  6. Step 6: Final answer
    x = 1,753.36

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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.