Home / 6,481.95-9,715.56-2,782.29

Finding the Fourth Proportional to 6,481.95, 9,715.56 and 2,782.29

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Solution

The fourth proportional to 6,481.95, 9,715.56 and 2,782.29 is: 4,170.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,481.95 : 9,715.56 = 2,782.29 : x
  2. Step 2: Convert to fraction form
    6,481.95/9,715.56 = 2,782.29/x
  3. Step 3: Cross multiply
    6,481.95x = 9,715.56 × 2,782.29
  4. Step 4: Simplify right side
    6,481.95x = 27,031,505.43
  5. Step 5: Solve for x
    x = 27,031,505.43/6,481.95
  6. Step 6: Final answer
    x = 4,170.27

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1.5x scale

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.