Home / 7,335.27-10,122.41-3,978.03

Finding the Fourth Proportional to 7,335.27, 10,122.41 and 3,978.03

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Solution

The fourth proportional to 7,335.27, 10,122.41 and 3,978.03 is: 5,489.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,335.27 : 10,122.41 = 3,978.03 : x
  2. Step 2: Convert to fraction form
    7,335.27/10,122.41 = 3,978.03/x
  3. Step 3: Cross multiply
    7,335.27x = 10,122.41 × 3,978.03
  4. Step 4: Simplify right side
    7,335.27x = 40,267,230.76
  5. Step 5: Solve for x
    x = 40,267,230.76/7,335.27
  6. Step 6: Final answer
    x = 5,489.54

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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.