Home / 2,104.08-3,157.32-1,239

Finding the Fourth Proportional to 2,104.08, 3,157.32 and 1,239

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Solution

The fourth proportional to 2,104.08, 3,157.32 and 1,239 is: 1,859.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,104.08 : 3,157.32 = 1,239 : x
  2. Step 2: Convert to fraction form
    2,104.08/3,157.32 = 1,239/x
  3. Step 3: Cross multiply
    2,104.08x = 3,157.32 × 1,239
  4. Step 4: Simplify right side
    2,104.08x = 3,911,919.48
  5. Step 5: Solve for x
    x = 3,911,919.48/2,104.08
  6. Step 6: Final answer
    x = 1,859.21

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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.