Home / 5,181.45-7,768.53-2,405.18

Finding the Fourth Proportional to 5,181.45, 7,768.53 and 2,405.18

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Solution

The fourth proportional to 5,181.45, 7,768.53 and 2,405.18 is: 3,606.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.45 : 7,768.53 = 2,405.18 : x
  2. Step 2: Convert to fraction form
    5,181.45/7,768.53 = 2,405.18/x
  3. Step 3: Cross multiply
    5,181.45x = 7,768.53 × 2,405.18
  4. Step 4: Simplify right side
    5,181.45x = 18,684,674.14
  5. Step 5: Solve for x
    x = 18,684,674.14/5,181.45
  6. Step 6: Final answer
    x = 3,606.07

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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.