Home / 5,409.18-7,464.72-3,171.12

Finding the Fourth Proportional to 5,409.18, 7,464.72 and 3,171.12

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Solution

The fourth proportional to 5,409.18, 7,464.72 and 3,171.12 is: 4,376.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,409.18 : 7,464.72 = 3,171.12 : x
  2. Step 2: Convert to fraction form
    5,409.18/7,464.72 = 3,171.12/x
  3. Step 3: Cross multiply
    5,409.18x = 7,464.72 × 3,171.12
  4. Step 4: Simplify right side
    5,409.18x = 23,671,506.79
  5. Step 5: Solve for x
    x = 23,671,506.79/5,409.18
  6. Step 6: Final answer
    x = 4,376.17

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.