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Finding the Fourth Proportional to 7,137.99, 10,708.58 and 3,443.32

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Solution

The fourth proportional to 7,137.99, 10,708.58 and 3,443.32 is: 5,165.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,137.99 : 10,708.58 = 3,443.32 : x
  2. Step 2: Convert to fraction form
    7,137.99/10,708.58 = 3,443.32/x
  3. Step 3: Cross multiply
    7,137.99x = 10,708.58 × 3,443.32
  4. Step 4: Simplify right side
    7,137.99x = 36,873,067.69
  5. Step 5: Solve for x
    x = 36,873,067.69/7,137.99
  6. Step 6: Final answer
    x = 5,165.75

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1.5x scale

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.