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Finding the Fourth Proportional to 2,043.10, 3,064.63 and 656.58

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Solution

The fourth proportional to 2,043.10, 3,064.63 and 656.58 is: 984.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,043.10 : 3,064.63 = 656.58 : x
  2. Step 2: Convert to fraction form
    2,043.10/3,064.63 = 656.58/x
  3. Step 3: Cross multiply
    2,043.10x = 3,064.63 × 656.58
  4. Step 4: Simplify right side
    2,043.10x = 2,012,174.77
  5. Step 5: Solve for x
    x = 2,012,174.77/2,043.10
  6. Step 6: Final answer
    x = 984.86

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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.