Home / 5,728.68-7,901.82-3,635.64

Finding the Fourth Proportional to 5,728.68, 7,901.82 and 3,635.64

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Solution

The fourth proportional to 5,728.68, 7,901.82 and 3,635.64 is: 5,014.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,728.68 : 7,901.82 = 3,635.64 : x
  2. Step 2: Convert to fraction form
    5,728.68/7,901.82 = 3,635.64/x
  3. Step 3: Cross multiply
    5,728.68x = 7,901.82 × 3,635.64
  4. Step 4: Simplify right side
    5,728.68x = 28,728,172.86
  5. Step 5: Solve for x
    x = 28,728,172.86/5,728.68
  6. Step 6: Final answer
    x = 5,014.80

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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.