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Finding the Fourth Proportional to 7,511.92, 10,366.71 and 4,155.28

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Solution

The fourth proportional to 7,511.92, 10,366.71 and 4,155.28 is: 5,734.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,511.92 : 10,366.71 = 4,155.28 : x
  2. Step 2: Convert to fraction form
    7,511.92/10,366.71 = 4,155.28/x
  3. Step 3: Cross multiply
    7,511.92x = 10,366.71 × 4,155.28
  4. Step 4: Simplify right side
    7,511.92x = 43,076,582.73
  5. Step 5: Solve for x
    x = 43,076,582.73/7,511.92
  6. Step 6: Final answer
    x = 5,734.43

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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.