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Finding the Fourth Proportional to 3,987.93, 5,981.07 and 2,234.70

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Solution

The fourth proportional to 3,987.93, 5,981.07 and 2,234.70 is: 3,351.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987.93 : 5,981.07 = 2,234.70 : x
  2. Step 2: Convert to fraction form
    3,987.93/5,981.07 = 2,234.70/x
  3. Step 3: Cross multiply
    3,987.93x = 5,981.07 × 2,234.70
  4. Step 4: Simplify right side
    3,987.93x = 13,365,897.13
  5. Step 5: Solve for x
    x = 13,365,897.13/3,987.93
  6. Step 6: Final answer
    x = 3,351.59

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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.