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Finding the Fourth Proportional to 5,375.70, 8,056.06 and 2,905.20

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Solution

The fourth proportional to 5,375.70, 8,056.06 and 2,905.20 is: 4,353.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,375.70 : 8,056.06 = 2,905.20 : x
  2. Step 2: Convert to fraction form
    5,375.70/8,056.06 = 2,905.20/x
  3. Step 3: Cross multiply
    5,375.70x = 8,056.06 × 2,905.20
  4. Step 4: Simplify right side
    5,375.70x = 23,404,465.51
  5. Step 5: Solve for x
    x = 23,404,465.51/5,375.70
  6. Step 6: Final answer
    x = 4,353.75

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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.