Home / 7,961.53-11,947.29-3,031.60

Finding the Fourth Proportional to 7,961.53, 11,947.29 and 3,031.60

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Solution

The fourth proportional to 7,961.53, 11,947.29 and 3,031.60 is: 4,549.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.53 : 11,947.29 = 3,031.60 : x
  2. Step 2: Convert to fraction form
    7,961.53/11,947.29 = 3,031.60/x
  3. Step 3: Cross multiply
    7,961.53x = 11,947.29 × 3,031.60
  4. Step 4: Simplify right side
    7,961.53x = 36,219,404.36
  5. Step 5: Solve for x
    x = 36,219,404.36/7,961.53
  6. Step 6: Final answer
    x = 4,549.30

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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.