Home / 4,748.42-7,122.63-3,115.29

Finding the Fourth Proportional to 4,748.42, 7,122.63 and 3,115.29

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Solution

The fourth proportional to 4,748.42, 7,122.63 and 3,115.29 is: 4,672.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,748.42 : 7,122.63 = 3,115.29 : x
  2. Step 2: Convert to fraction form
    4,748.42/7,122.63 = 3,115.29/x
  3. Step 3: Cross multiply
    4,748.42x = 7,122.63 × 3,115.29
  4. Step 4: Simplify right side
    4,748.42x = 22,189,096.40
  5. Step 5: Solve for x
    x = 22,189,096.40/4,748.42
  6. Step 6: Final answer
    x = 4,672.94

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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.