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Finding the Fourth Proportional to 2,795.16, 4,192.88 and 715.18

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Solution

The fourth proportional to 2,795.16, 4,192.88 and 715.18 is: 1,072.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,795.16 : 4,192.88 = 715.18 : x
  2. Step 2: Convert to fraction form
    2,795.16/4,192.88 = 715.18/x
  3. Step 3: Cross multiply
    2,795.16x = 4,192.88 × 715.18
  4. Step 4: Simplify right side
    2,795.16x = 2,998,650.53
  5. Step 5: Solve for x
    x = 2,998,650.53/2,795.16
  6. Step 6: Final answer
    x = 1,072.80

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Why These Related Problems?

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