Home / 5,040.65-7,561.79-2,119.79

Finding the Fourth Proportional to 5,040.65, 7,561.79 and 2,119.79

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Solution

The fourth proportional to 5,040.65, 7,561.79 and 2,119.79 is: 3,180.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,040.65 : 7,561.79 = 2,119.79 : x
  2. Step 2: Convert to fraction form
    5,040.65/7,561.79 = 2,119.79/x
  3. Step 3: Cross multiply
    5,040.65x = 7,561.79 × 2,119.79
  4. Step 4: Simplify right side
    5,040.65x = 16,029,423.08
  5. Step 5: Solve for x
    x = 16,029,423.08/5,040.65
  6. Step 6: Final answer
    x = 3,180.03

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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.