Home / 3,663.90-5,488.97-3,278.34

Finding the Fourth Proportional to 3,663.90, 5,488.97 and 3,278.34

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Solution

The fourth proportional to 3,663.90, 5,488.97 and 3,278.34 is: 4,911.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,663.90 : 5,488.97 = 3,278.34 : x
  2. Step 2: Convert to fraction form
    3,663.90/5,488.97 = 3,278.34/x
  3. Step 3: Cross multiply
    3,663.90x = 5,488.97 × 3,278.34
  4. Step 4: Simplify right side
    3,663.90x = 17,994,693.52
  5. Step 5: Solve for x
    x = 17,994,693.52/3,663.90
  6. Step 6: Final answer
    x = 4,911.35

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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.