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Finding the Fourth Proportional to 7,019.77, 9,687.22 and 3,833.05

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Solution

The fourth proportional to 7,019.77, 9,687.22 and 3,833.05 is: 5,289.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,019.77 : 9,687.22 = 3,833.05 : x
  2. Step 2: Convert to fraction form
    7,019.77/9,687.22 = 3,833.05/x
  3. Step 3: Cross multiply
    7,019.77x = 9,687.22 × 3,833.05
  4. Step 4: Simplify right side
    7,019.77x = 37,131,561.23
  5. Step 5: Solve for x
    x = 37,131,561.23/7,019.77
  6. Step 6: Final answer
    x = 5,289.57

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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.