Home / 1,499.19-2,249.43-805.05

Finding the Fourth Proportional to 1,499.19, 2,249.43 and 805.05

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Solution

The fourth proportional to 1,499.19, 2,249.43 and 805.05 is: 1,207.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,499.19 : 2,249.43 = 805.05 : x
  2. Step 2: Convert to fraction form
    1,499.19/2,249.43 = 805.05/x
  3. Step 3: Cross multiply
    1,499.19x = 2,249.43 × 805.05
  4. Step 4: Simplify right side
    1,499.19x = 1,810,896.70
  5. Step 5: Solve for x
    x = 1,810,896.70/1,499.19
  6. Step 6: Final answer
    x = 1,207.92

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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.