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Finding the Fourth Proportional to 2,796.46, 3,859.20 and 1,853.88

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Solution

The fourth proportional to 2,796.46, 3,859.20 and 1,853.88 is: 2,558.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,796.46 : 3,859.20 = 1,853.88 : x
  2. Step 2: Convert to fraction form
    2,796.46/3,859.20 = 1,853.88/x
  3. Step 3: Cross multiply
    2,796.46x = 3,859.20 × 1,853.88
  4. Step 4: Simplify right side
    2,796.46x = 7,154,493.70
  5. Step 5: Solve for x
    x = 7,154,493.70/2,796.46
  6. Step 6: Final answer
    x = 2,558.41

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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.