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Finding the Fourth Proportional to 7,099.56, 10,649.34 and 1,905.44

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Solution

The fourth proportional to 7,099.56, 10,649.34 and 1,905.44 is: 2,858.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,099.56 : 10,649.34 = 1,905.44 : x
  2. Step 2: Convert to fraction form
    7,099.56/10,649.34 = 1,905.44/x
  3. Step 3: Cross multiply
    7,099.56x = 10,649.34 × 1,905.44
  4. Step 4: Simplify right side
    7,099.56x = 20,291,641.48
  5. Step 5: Solve for x
    x = 20,291,641.48/7,099.56
  6. Step 6: Final answer
    x = 2,858.15

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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.