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Finding the Fourth Proportional to 3,062.61, 4,594.68 and 982.80

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Solution

The fourth proportional to 3,062.61, 4,594.68 and 982.80 is: 1,474.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,062.61 : 4,594.68 = 982.80 : x
  2. Step 2: Convert to fraction form
    3,062.61/4,594.68 = 982.80/x
  3. Step 3: Cross multiply
    3,062.61x = 4,594.68 × 982.80
  4. Step 4: Simplify right side
    3,062.61x = 4,515,651.50
  5. Step 5: Solve for x
    x = 4,515,651.50/3,062.61
  6. Step 6: Final answer
    x = 1,474.45

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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.