Home / 2,412.23-3,611.68-1,239.71

Finding the Fourth Proportional to 2,412.23, 3,611.68 and 1,239.71

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Solution

The fourth proportional to 2,412.23, 3,611.68 and 1,239.71 is: 1,856.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,412.23 : 3,611.68 = 1,239.71 : x
  2. Step 2: Convert to fraction form
    2,412.23/3,611.68 = 1,239.71/x
  3. Step 3: Cross multiply
    2,412.23x = 3,611.68 × 1,239.71
  4. Step 4: Simplify right side
    2,412.23x = 4,477,441.74
  5. Step 5: Solve for x
    x = 4,477,441.74/2,412.23
  6. Step 6: Final answer
    x = 1,856.14

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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.