Home / 7,649.26-11,471.76-2,101.28

Finding the Fourth Proportional to 7,649.26, 11,471.76 and 2,101.28

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Solution

The fourth proportional to 7,649.26, 11,471.76 and 2,101.28 is: 3,151.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,649.26 : 11,471.76 = 2,101.28 : x
  2. Step 2: Convert to fraction form
    7,649.26/11,471.76 = 2,101.28/x
  3. Step 3: Cross multiply
    7,649.26x = 11,471.76 × 2,101.28
  4. Step 4: Simplify right side
    7,649.26x = 24,105,322.49
  5. Step 5: Solve for x
    x = 24,105,322.49/7,649.26
  6. Step 6: Final answer
    x = 3,151.33

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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.