Home / 5,429.46-8,144.57-2,309.12

Finding the Fourth Proportional to 5,429.46, 8,144.57 and 2,309.12

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Solution

The fourth proportional to 5,429.46, 8,144.57 and 2,309.12 is: 3,463.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.46 : 8,144.57 = 2,309.12 : x
  2. Step 2: Convert to fraction form
    5,429.46/8,144.57 = 2,309.12/x
  3. Step 3: Cross multiply
    5,429.46x = 8,144.57 × 2,309.12
  4. Step 4: Simplify right side
    5,429.46x = 18,806,789.48
  5. Step 5: Solve for x
    x = 18,806,789.48/5,429.46
  6. Step 6: Final answer
    x = 3,463.84

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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.