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Finding the Fourth Proportional to 2,795.78, 3,857.98 and 1,536.92

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Solution

The fourth proportional to 2,795.78, 3,857.98 and 1,536.92 is: 2,120.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,795.78 : 3,857.98 = 1,536.92 : x
  2. Step 2: Convert to fraction form
    2,795.78/3,857.98 = 1,536.92/x
  3. Step 3: Cross multiply
    2,795.78x = 3,857.98 × 1,536.92
  4. Step 4: Simplify right side
    2,795.78x = 5,929,406.62
  5. Step 5: Solve for x
    x = 5,929,406.62/2,795.78
  6. Step 6: Final answer
    x = 2,120.84

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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.