Home / 7,429.79-11,142.33-2,685.32

Finding the Fourth Proportional to 7,429.79, 11,142.33 and 2,685.32

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Solution

The fourth proportional to 7,429.79, 11,142.33 and 2,685.32 is: 4,027.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,429.79 : 11,142.33 = 2,685.32 : x
  2. Step 2: Convert to fraction form
    7,429.79/11,142.33 = 2,685.32/x
  3. Step 3: Cross multiply
    7,429.79x = 11,142.33 × 2,685.32
  4. Step 4: Simplify right side
    7,429.79x = 29,920,665.88
  5. Step 5: Solve for x
    x = 29,920,665.88/7,429.79
  6. Step 6: Final answer
    x = 4,027.12

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.