Home / 1,814.12-2,502.42-1,115

Finding the Fourth Proportional to 1,814.12, 2,502.42 and 1,115

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Solution

The fourth proportional to 1,814.12, 2,502.42 and 1,115 is: 1,538.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,814.12 : 2,502.42 = 1,115 : x
  2. Step 2: Convert to fraction form
    1,814.12/2,502.42 = 1,115/x
  3. Step 3: Cross multiply
    1,814.12x = 2,502.42 × 1,115
  4. Step 4: Simplify right side
    1,814.12x = 2,790,198.30
  5. Step 5: Solve for x
    x = 2,790,198.30/1,814.12
  6. Step 6: Final answer
    x = 1,538.05

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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.