Home / 5,912.32-8,159.36-3,429.12

Finding the Fourth Proportional to 5,912.32, 8,159.36 and 3,429.12

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Solution

The fourth proportional to 5,912.32, 8,159.36 and 3,429.12 is: 4,732.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,912.32 : 8,159.36 = 3,429.12 : x
  2. Step 2: Convert to fraction form
    5,912.32/8,159.36 = 3,429.12/x
  3. Step 3: Cross multiply
    5,912.32x = 8,159.36 × 3,429.12
  4. Step 4: Simplify right side
    5,912.32x = 27,979,424.56
  5. Step 5: Solve for x
    x = 27,979,424.56/5,912.32
  6. Step 6: Final answer
    x = 4,732.39

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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.