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Finding the Fourth Proportional to 2,644.79, 3,648.44 and 1,747.64

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Solution

The fourth proportional to 2,644.79, 3,648.44 and 1,747.64 is: 2,410.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,644.79 : 3,648.44 = 1,747.64 : x
  2. Step 2: Convert to fraction form
    2,644.79/3,648.44 = 1,747.64/x
  3. Step 3: Cross multiply
    2,644.79x = 3,648.44 × 1,747.64
  4. Step 4: Simplify right side
    2,644.79x = 6,376,173.17
  5. Step 5: Solve for x
    x = 6,376,173.17/2,644.79
  6. Step 6: Final answer
    x = 2,410.85

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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.