Home / 7,050.23-9,728.88-3,906.43

Finding the Fourth Proportional to 7,050.23, 9,728.88 and 3,906.43

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Solution

The fourth proportional to 7,050.23, 9,728.88 and 3,906.43 is: 5,390.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,050.23 : 9,728.88 = 3,906.43 : x
  2. Step 2: Convert to fraction form
    7,050.23/9,728.88 = 3,906.43/x
  3. Step 3: Cross multiply
    7,050.23x = 9,728.88 × 3,906.43
  4. Step 4: Simplify right side
    7,050.23x = 38,005,188.70
  5. Step 5: Solve for x
    x = 38,005,188.70/7,050.23
  6. Step 6: Final answer
    x = 5,390.63

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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.