Home / 5,629.92-7,769.29-3,145.92

Finding the Fourth Proportional to 5,629.92, 7,769.29 and 3,145.92

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Solution

The fourth proportional to 5,629.92, 7,769.29 and 3,145.92 is: 4,341.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,629.92 : 7,769.29 = 3,145.92 : x
  2. Step 2: Convert to fraction form
    5,629.92/7,769.29 = 3,145.92/x
  3. Step 3: Cross multiply
    5,629.92x = 7,769.29 × 3,145.92
  4. Step 4: Simplify right side
    5,629.92x = 24,441,586.25
  5. Step 5: Solve for x
    x = 24,441,586.25/5,629.92
  6. Step 6: Final answer
    x = 4,341.37

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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.