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Finding the Fourth Proportional to 6,453.69, 9,679.37 and 1,709.88

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Solution

The fourth proportional to 6,453.69, 9,679.37 and 1,709.88 is: 2,564.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,453.69 : 9,679.37 = 1,709.88 : x
  2. Step 2: Convert to fraction form
    6,453.69/9,679.37 = 1,709.88/x
  3. Step 3: Cross multiply
    6,453.69x = 9,679.37 × 1,709.88
  4. Step 4: Simplify right side
    6,453.69x = 16,550,561.18
  5. Step 5: Solve for x
    x = 16,550,561.18/6,453.69
  6. Step 6: Final answer
    x = 2,564.51

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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.