Home / 4,119.67-6,176.76-2,140.43

Finding the Fourth Proportional to 4,119.67, 6,176.76 and 2,140.43

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Solution

The fourth proportional to 4,119.67, 6,176.76 and 2,140.43 is: 3,209.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,119.67 : 6,176.76 = 2,140.43 : x
  2. Step 2: Convert to fraction form
    4,119.67/6,176.76 = 2,140.43/x
  3. Step 3: Cross multiply
    4,119.67x = 6,176.76 × 2,140.43
  4. Step 4: Simplify right side
    4,119.67x = 13,220,929.82
  5. Step 5: Solve for x
    x = 13,220,929.82/4,119.67
  6. Step 6: Final answer
    x = 3,209.22

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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.