Home / 6,887.21-10,334.52-2,991.92

Finding the Fourth Proportional to 6,887.21, 10,334.52 and 2,991.92

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Solution

The fourth proportional to 6,887.21, 10,334.52 and 2,991.92 is: 4,489.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,887.21 : 10,334.52 = 2,991.92 : x
  2. Step 2: Convert to fraction form
    6,887.21/10,334.52 = 2,991.92/x
  3. Step 3: Cross multiply
    6,887.21x = 10,334.52 × 2,991.92
  4. Step 4: Simplify right side
    6,887.21x = 30,920,005.41
  5. Step 5: Solve for x
    x = 30,920,005.41/6,887.21
  6. Step 6: Final answer
    x = 4,489.49

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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.