Home / 7,420.88-11,131.42-3,035.28

Finding the Fourth Proportional to 7,420.88, 11,131.42 and 3,035.28

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Solution

The fourth proportional to 7,420.88, 11,131.42 and 3,035.28 is: 4,552.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.88 : 11,131.42 = 3,035.28 : x
  2. Step 2: Convert to fraction form
    7,420.88/11,131.42 = 3,035.28/x
  3. Step 3: Cross multiply
    7,420.88x = 11,131.42 × 3,035.28
  4. Step 4: Simplify right side
    7,420.88x = 33,786,976.50
  5. Step 5: Solve for x
    x = 33,786,976.50/7,420.88
  6. Step 6: Final answer
    x = 4,552.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.