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Finding the Fourth Proportional to 5,010.96, 6,915 and 2,772.96

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Solution

The fourth proportional to 5,010.96, 6,915 and 2,772.96 is: 3,826.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,010.96 : 6,915 = 2,772.96 : x
  2. Step 2: Convert to fraction form
    5,010.96/6,915 = 2,772.96/x
  3. Step 3: Cross multiply
    5,010.96x = 6,915 × 2,772.96
  4. Step 4: Simplify right side
    5,010.96x = 19,175,018.40
  5. Step 5: Solve for x
    x = 19,175,018.40/5,010.96
  6. Step 6: Final answer
    x = 3,826.62

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1.5x scale

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.