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Finding the Fourth Proportional to 7,550.80, 10,420.01 and 4,193.49

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Solution

The fourth proportional to 7,550.80, 10,420.01 and 4,193.49 is: 5,786.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,550.80 : 10,420.01 = 4,193.49 : x
  2. Step 2: Convert to fraction form
    7,550.80/10,420.01 = 4,193.49/x
  3. Step 3: Cross multiply
    7,550.80x = 10,420.01 × 4,193.49
  4. Step 4: Simplify right side
    7,550.80x = 43,696,207.73
  5. Step 5: Solve for x
    x = 43,696,207.73/7,550.80
  6. Step 6: Final answer
    x = 5,786.96

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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.