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Finding the Fourth Proportional to 4,505.66, 6,759.13 and 1,385.93

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Solution

The fourth proportional to 4,505.66, 6,759.13 and 1,385.93 is: 2,079.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,505.66 : 6,759.13 = 1,385.93 : x
  2. Step 2: Convert to fraction form
    4,505.66/6,759.13 = 1,385.93/x
  3. Step 3: Cross multiply
    4,505.66x = 6,759.13 × 1,385.93
  4. Step 4: Simplify right side
    4,505.66x = 9,367,648.98
  5. Step 5: Solve for x
    x = 9,367,648.98/4,505.66
  6. Step 6: Final answer
    x = 2,079.09

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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.