Home / 5,635.78-7,775.48-3,275.98

Finding the Fourth Proportional to 5,635.78, 7,775.48 and 3,275.98

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Solution

The fourth proportional to 5,635.78, 7,775.48 and 3,275.98 is: 4,519.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,635.78 : 7,775.48 = 3,275.98 : x
  2. Step 2: Convert to fraction form
    5,635.78/7,775.48 = 3,275.98/x
  3. Step 3: Cross multiply
    5,635.78x = 7,775.48 × 3,275.98
  4. Step 4: Simplify right side
    5,635.78x = 25,472,316.97
  5. Step 5: Solve for x
    x = 25,472,316.97/5,635.78
  6. Step 6: Final answer
    x = 4,519.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.