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Finding the Fourth Proportional to 7,649.55, 11,474.01 and 2,102.49

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Solution

The fourth proportional to 7,649.55, 11,474.01 and 2,102.49 is: 3,153.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,649.55 : 11,474.01 = 2,102.49 : x
  2. Step 2: Convert to fraction form
    7,649.55/11,474.01 = 2,102.49/x
  3. Step 3: Cross multiply
    7,649.55x = 11,474.01 × 2,102.49
  4. Step 4: Simplify right side
    7,649.55x = 24,123,991.28
  5. Step 5: Solve for x
    x = 24,123,991.28/7,649.55
  6. Step 6: Final answer
    x = 3,153.65

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Double scale
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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.