Home / 7,961.96-11,941.02-3,031.40

Finding the Fourth Proportional to 7,961.96, 11,941.02 and 3,031.40

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Solution

The fourth proportional to 7,961.96, 11,941.02 and 3,031.40 is: 4,546.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.96 : 11,941.02 = 3,031.40 : x
  2. Step 2: Convert to fraction form
    7,961.96/11,941.02 = 3,031.40/x
  3. Step 3: Cross multiply
    7,961.96x = 11,941.02 × 3,031.40
  4. Step 4: Simplify right side
    7,961.96x = 36,198,008.03
  5. Step 5: Solve for x
    x = 36,198,008.03/7,961.96
  6. Step 6: Final answer
    x = 4,546.37

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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.