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Finding the Fourth Proportional to 2,666.93, 3,679.83 and 1,487.97

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Solution

The fourth proportional to 2,666.93, 3,679.83 and 1,487.97 is: 2,053.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.93 : 3,679.83 = 1,487.97 : x
  2. Step 2: Convert to fraction form
    2,666.93/3,679.83 = 1,487.97/x
  3. Step 3: Cross multiply
    2,666.93x = 3,679.83 × 1,487.97
  4. Step 4: Simplify right side
    2,666.93x = 5,475,476.65
  5. Step 5: Solve for x
    x = 5,475,476.65/2,666.93
  6. Step 6: Final answer
    x = 2,053.10

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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.