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Finding the Fourth Proportional to 5,991.49, 8,987.20 and 1,831.49

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Solution

The fourth proportional to 5,991.49, 8,987.20 and 1,831.49 is: 2,747.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,991.49 : 8,987.20 = 1,831.49 : x
  2. Step 2: Convert to fraction form
    5,991.49/8,987.20 = 1,831.49/x
  3. Step 3: Cross multiply
    5,991.49x = 8,987.20 × 1,831.49
  4. Step 4: Simplify right side
    5,991.49x = 16,459,951.12
  5. Step 5: Solve for x
    x = 16,459,951.12/5,991.49
  6. Step 6: Final answer
    x = 2,747.22

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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.