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Finding the Fourth Proportional to 5,991.40, 8,987.13 and 1,831.39

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Solution

The fourth proportional to 5,991.40, 8,987.13 and 1,831.39 is: 2,747.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,991.40 : 8,987.13 = 1,831.39 : x
  2. Step 2: Convert to fraction form
    5,991.40/8,987.13 = 1,831.39/x
  3. Step 3: Cross multiply
    5,991.40x = 8,987.13 × 1,831.39
  4. Step 4: Simplify right side
    5,991.40x = 16,458,958.94
  5. Step 5: Solve for x
    x = 16,458,958.94/5,991.40
  6. Step 6: Final answer
    x = 2,747.10

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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.