Home / 4,909.14-7,362.68-1,621.48

Finding the Fourth Proportional to 4,909.14, 7,362.68 and 1,621.48

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Solution

The fourth proportional to 4,909.14, 7,362.68 and 1,621.48 is: 2,431.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,909.14 : 7,362.68 = 1,621.48 : x
  2. Step 2: Convert to fraction form
    4,909.14/7,362.68 = 1,621.48/x
  3. Step 3: Cross multiply
    4,909.14x = 7,362.68 × 1,621.48
  4. Step 4: Simplify right side
    4,909.14x = 11,938,438.37
  5. Step 5: Solve for x
    x = 11,938,438.37/4,909.14
  6. Step 6: Final answer
    x = 2,431.88

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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.