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Finding the Fourth Proportional to 6,991.40, 10,487.10 and 1,797.24

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Solution

The fourth proportional to 6,991.40, 10,487.10 and 1,797.24 is: 2,695.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,991.40 : 10,487.10 = 1,797.24 : x
  2. Step 2: Convert to fraction form
    6,991.40/10,487.10 = 1,797.24/x
  3. Step 3: Cross multiply
    6,991.40x = 10,487.10 × 1,797.24
  4. Step 4: Simplify right side
    6,991.40x = 18,847,835.60
  5. Step 5: Solve for x
    x = 18,847,835.60/6,991.40
  6. Step 6: Final answer
    x = 2,695.86

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Similar ratio
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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.