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Finding the Fourth Proportional to 7,187.94, 9,919.32 and 4,044.12

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Solution

The fourth proportional to 7,187.94, 9,919.32 and 4,044.12 is: 5,580.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,187.94 : 9,919.32 = 4,044.12 : x
  2. Step 2: Convert to fraction form
    7,187.94/9,919.32 = 4,044.12/x
  3. Step 3: Cross multiply
    7,187.94x = 9,919.32 × 4,044.12
  4. Step 4: Simplify right side
    7,187.94x = 40,114,920.40
  5. Step 5: Solve for x
    x = 40,114,920.40/7,187.94
  6. Step 6: Final answer
    x = 5,580.86

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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.