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Finding the Fourth Proportional to 7,101.36, 9,799.92 and 4,118.99

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Solution

The fourth proportional to 7,101.36, 9,799.92 and 4,118.99 is: 5,684.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,101.36 : 9,799.92 = 4,118.99 : x
  2. Step 2: Convert to fraction form
    7,101.36/9,799.92 = 4,118.99/x
  3. Step 3: Cross multiply
    7,101.36x = 9,799.92 × 4,118.99
  4. Step 4: Simplify right side
    7,101.36x = 40,365,723.48
  5. Step 5: Solve for x
    x = 40,365,723.48/7,101.36
  6. Step 6: Final answer
    x = 5,684.22

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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.