Home / 1,808.20-2,494.81-1,145.33

Finding the Fourth Proportional to 1,808.20, 2,494.81 and 1,145.33

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Solution

The fourth proportional to 1,808.20, 2,494.81 and 1,145.33 is: 1,580.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,808.20 : 2,494.81 = 1,145.33 : x
  2. Step 2: Convert to fraction form
    1,808.20/2,494.81 = 1,145.33/x
  3. Step 3: Cross multiply
    1,808.20x = 2,494.81 × 1,145.33
  4. Step 4: Simplify right side
    1,808.20x = 2,857,380.74
  5. Step 5: Solve for x
    x = 2,857,380.74/1,808.20
  6. Step 6: Final answer
    x = 1,580.23

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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.