Home / 5,213.99-7,192.62-3,489.81

Finding the Fourth Proportional to 5,213.99, 7,192.62 and 3,489.81

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Solution

The fourth proportional to 5,213.99, 7,192.62 and 3,489.81 is: 4,814.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.99 : 7,192.62 = 3,489.81 : x
  2. Step 2: Convert to fraction form
    5,213.99/7,192.62 = 3,489.81/x
  3. Step 3: Cross multiply
    5,213.99x = 7,192.62 × 3,489.81
  4. Step 4: Simplify right side
    5,213.99x = 25,100,877.20
  5. Step 5: Solve for x
    x = 25,100,877.20/5,213.99
  6. Step 6: Final answer
    x = 4,814.14

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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.