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Finding the Fourth Proportional to 2,796.64, 3,859.44 and 1,554.72

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Solution

The fourth proportional to 2,796.64, 3,859.44 and 1,554.72 is: 2,145.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,796.64 : 3,859.44 = 1,554.72 : x
  2. Step 2: Convert to fraction form
    2,796.64/3,859.44 = 1,554.72/x
  3. Step 3: Cross multiply
    2,796.64x = 3,859.44 × 1,554.72
  4. Step 4: Simplify right side
    2,796.64x = 6,000,348.56
  5. Step 5: Solve for x
    x = 6,000,348.56/2,796.64
  6. Step 6: Final answer
    x = 2,145.56

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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.