Home / 1,922.80-2,885.64-1,305.04

Finding the Fourth Proportional to 1,922.80, 2,885.64 and 1,305.04

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Solution

The fourth proportional to 1,922.80, 2,885.64 and 1,305.04 is: 1,958.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,922.80 : 2,885.64 = 1,305.04 : x
  2. Step 2: Convert to fraction form
    1,922.80/2,885.64 = 1,305.04/x
  3. Step 3: Cross multiply
    1,922.80x = 2,885.64 × 1,305.04
  4. Step 4: Simplify right side
    1,922.80x = 3,765,875.63
  5. Step 5: Solve for x
    x = 3,765,875.63/1,922.80
  6. Step 6: Final answer
    x = 1,958.54

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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.