Home / 3,143.43-4,714.54-2,987.33

Finding the Fourth Proportional to 3,143.43, 4,714.54 and 2,987.33

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Solution

The fourth proportional to 3,143.43, 4,714.54 and 2,987.33 is: 4,480.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.43 : 4,714.54 = 2,987.33 : x
  2. Step 2: Convert to fraction form
    3,143.43/4,714.54 = 2,987.33/x
  3. Step 3: Cross multiply
    3,143.43x = 4,714.54 × 2,987.33
  4. Step 4: Simplify right side
    3,143.43x = 14,083,855.74
  5. Step 5: Solve for x
    x = 14,083,855.74/3,143.43
  6. Step 6: Final answer
    x = 4,480.41

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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.