Home / 5,635.76-7,777.38-3,278.02

Finding the Fourth Proportional to 5,635.76, 7,777.38 and 3,278.02

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Solution

The fourth proportional to 5,635.76, 7,777.38 and 3,278.02 is: 4,523.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,635.76 : 7,777.38 = 3,278.02 : x
  2. Step 2: Convert to fraction form
    5,635.76/7,777.38 = 3,278.02/x
  3. Step 3: Cross multiply
    5,635.76x = 7,777.38 × 3,278.02
  4. Step 4: Simplify right side
    5,635.76x = 25,494,407.19
  5. Step 5: Solve for x
    x = 25,494,407.19/5,635.76
  6. Step 6: Final answer
    x = 4,523.69

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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.