Home / 7,985.04-11,971.98-3,540.54

Finding the Fourth Proportional to 7,985.04, 11,971.98 and 3,540.54

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Solution

The fourth proportional to 7,985.04, 11,971.98 and 3,540.54 is: 5,308.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,985.04 : 11,971.98 = 3,540.54 : x
  2. Step 2: Convert to fraction form
    7,985.04/11,971.98 = 3,540.54/x
  3. Step 3: Cross multiply
    7,985.04x = 11,971.98 × 3,540.54
  4. Step 4: Simplify right side
    7,985.04x = 42,387,274.07
  5. Step 5: Solve for x
    x = 42,387,274.07/7,985.04
  6. Step 6: Final answer
    x = 5,308.34

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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.