Home / 2,412.68-3,618.98-1,243

Finding the Fourth Proportional to 2,412.68, 3,618.98 and 1,243

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Solution

The fourth proportional to 2,412.68, 3,618.98 and 1,243 is: 1,864.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,412.68 : 3,618.98 = 1,243 : x
  2. Step 2: Convert to fraction form
    2,412.68/3,618.98 = 1,243/x
  3. Step 3: Cross multiply
    2,412.68x = 3,618.98 × 1,243
  4. Step 4: Simplify right side
    2,412.68x = 4,498,392.14
  5. Step 5: Solve for x
    x = 4,498,392.14/2,412.68
  6. Step 6: Final answer
    x = 1,864.48

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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.