Home / 1,924.70-2,879.87-1,145.12

Finding the Fourth Proportional to 1,924.70, 2,879.87 and 1,145.12

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Solution

The fourth proportional to 1,924.70, 2,879.87 and 1,145.12 is: 1,713.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,924.70 : 2,879.87 = 1,145.12 : x
  2. Step 2: Convert to fraction form
    1,924.70/2,879.87 = 1,145.12/x
  3. Step 3: Cross multiply
    1,924.70x = 2,879.87 × 1,145.12
  4. Step 4: Simplify right side
    1,924.70x = 3,297,776.61
  5. Step 5: Solve for x
    x = 3,297,776.61/1,924.70
  6. Step 6: Final answer
    x = 1,713.40

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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.