Home / 5,629.84-7,769.79-3,239.92

Finding the Fourth Proportional to 5,629.84, 7,769.79 and 3,239.92

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Solution

The fourth proportional to 5,629.84, 7,769.79 and 3,239.92 is: 4,471.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,629.84 : 7,769.79 = 3,239.92 : x
  2. Step 2: Convert to fraction form
    5,629.84/7,769.79 = 3,239.92/x
  3. Step 3: Cross multiply
    5,629.84x = 7,769.79 × 3,239.92
  4. Step 4: Simplify right side
    5,629.84x = 25,173,498.02
  5. Step 5: Solve for x
    x = 25,173,498.02/5,629.84
  6. Step 6: Final answer
    x = 4,471.44

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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.