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Finding the Fourth Proportional to 3,342.95, 5,010.89 and 1,781.99

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Solution

The fourth proportional to 3,342.95, 5,010.89 and 1,781.99 is: 2,671.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,342.95 : 5,010.89 = 1,781.99 : x
  2. Step 2: Convert to fraction form
    3,342.95/5,010.89 = 1,781.99/x
  3. Step 3: Cross multiply
    3,342.95x = 5,010.89 × 1,781.99
  4. Step 4: Simplify right side
    3,342.95x = 8,929,321.91
  5. Step 5: Solve for x
    x = 8,929,321.91/3,342.95
  6. Step 6: Final answer
    x = 2,671.09

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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.