Home / 2,654.12-3,971.85-2,180.07

Finding the Fourth Proportional to 2,654.12, 3,971.85 and 2,180.07

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Solution

The fourth proportional to 2,654.12, 3,971.85 and 2,180.07 is: 3,262.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,654.12 : 3,971.85 = 2,180.07 : x
  2. Step 2: Convert to fraction form
    2,654.12/3,971.85 = 2,180.07/x
  3. Step 3: Cross multiply
    2,654.12x = 3,971.85 × 2,180.07
  4. Step 4: Simplify right side
    2,654.12x = 8,658,911.03
  5. Step 5: Solve for x
    x = 8,658,911.03/2,654.12
  6. Step 6: Final answer
    x = 3,262.45

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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.