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Finding the Fourth Proportional to 5,781.73, 8,673.14 and 1,621.73

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Solution

The fourth proportional to 5,781.73, 8,673.14 and 1,621.73 is: 2,432.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,781.73 : 8,673.14 = 1,621.73 : x
  2. Step 2: Convert to fraction form
    5,781.73/8,673.14 = 1,621.73/x
  3. Step 3: Cross multiply
    5,781.73x = 8,673.14 × 1,621.73
  4. Step 4: Simplify right side
    5,781.73x = 14,065,491.33
  5. Step 5: Solve for x
    x = 14,065,491.33/5,781.73
  6. Step 6: Final answer
    x = 2,432.75

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1.5x scale

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.