Home / 5,409.36-7,464.24-3,172

Finding the Fourth Proportional to 5,409.36, 7,464.24 and 3,172

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Solution

The fourth proportional to 5,409.36, 7,464.24 and 3,172 is: 4,376.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,409.36 : 7,464.24 = 3,172 : x
  2. Step 2: Convert to fraction form
    5,409.36/7,464.24 = 3,172/x
  3. Step 3: Cross multiply
    5,409.36x = 7,464.24 × 3,172
  4. Step 4: Simplify right side
    5,409.36x = 23,676,569.28
  5. Step 5: Solve for x
    x = 23,676,569.28/5,409.36
  6. Step 6: Final answer
    x = 4,376.96

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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.