Home / 4,309.75-6,465.84-2,119.69

Finding the Fourth Proportional to 4,309.75, 6,465.84 and 2,119.69

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Solution

The fourth proportional to 4,309.75, 6,465.84 and 2,119.69 is: 3,180.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,309.75 : 6,465.84 = 2,119.69 : x
  2. Step 2: Convert to fraction form
    4,309.75/6,465.84 = 2,119.69/x
  3. Step 3: Cross multiply
    4,309.75x = 6,465.84 × 2,119.69
  4. Step 4: Simplify right side
    4,309.75x = 13,705,576.39
  5. Step 5: Solve for x
    x = 13,705,576.39/4,309.75
  6. Step 6: Final answer
    x = 3,180.13

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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.