Home / 3,918.90-5,876.44-2,275.86

Finding the Fourth Proportional to 3,918.90, 5,876.44 and 2,275.86

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Solution

The fourth proportional to 3,918.90, 5,876.44 and 2,275.86 is: 3,412.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.90 : 5,876.44 = 2,275.86 : x
  2. Step 2: Convert to fraction form
    3,918.90/5,876.44 = 2,275.86/x
  3. Step 3: Cross multiply
    3,918.90x = 5,876.44 × 2,275.86
  4. Step 4: Simplify right side
    3,918.90x = 13,373,954.74
  5. Step 5: Solve for x
    x = 13,373,954.74/3,918.90
  6. Step 6: Final answer
    x = 3,412.68

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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.