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Finding the Fourth Proportional to 2,546, 3,818.46 and 2,061.80

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Solution

The fourth proportional to 2,546, 3,818.46 and 2,061.80 is: 3,092.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,546 : 3,818.46 = 2,061.80 : x
  2. Step 2: Convert to fraction form
    2,546/3,818.46 = 2,061.80/x
  3. Step 3: Cross multiply
    2,546x = 3,818.46 × 2,061.80
  4. Step 4: Simplify right side
    2,546x = 7,872,900.83
  5. Step 5: Solve for x
    x = 7,872,900.83/2,546
  6. Step 6: Final answer
    x = 3,092.26

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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.