Home / 4,748.22-7,121.92-1,461

Finding the Fourth Proportional to 4,748.22, 7,121.92 and 1,461

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Solution

The fourth proportional to 4,748.22, 7,121.92 and 1,461 is: 2,191.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,748.22 : 7,121.92 = 1,461 : x
  2. Step 2: Convert to fraction form
    4,748.22/7,121.92 = 1,461/x
  3. Step 3: Cross multiply
    4,748.22x = 7,121.92 × 1,461
  4. Step 4: Simplify right side
    4,748.22x = 10,405,125.12
  5. Step 5: Solve for x
    x = 10,405,125.12/4,748.22
  6. Step 6: Final answer
    x = 2,191.37

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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.