Home / 7,961.90-11,941.16-3,031.97

Finding the Fourth Proportional to 7,961.90, 11,941.16 and 3,031.97

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Solution

The fourth proportional to 7,961.90, 11,941.16 and 3,031.97 is: 4,547.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.90 : 11,941.16 = 3,031.97 : x
  2. Step 2: Convert to fraction form
    7,961.90/11,941.16 = 3,031.97/x
  3. Step 3: Cross multiply
    7,961.90x = 11,941.16 × 3,031.97
  4. Step 4: Simplify right side
    7,961.90x = 36,205,164.02
  5. Step 5: Solve for x
    x = 36,205,164.02/7,961.90
  6. Step 6: Final answer
    x = 4,547.30

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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.