Home / 4,119.77-6,172.46-3,430.87

Finding the Fourth Proportional to 4,119.77, 6,172.46 and 3,430.87

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Solution

The fourth proportional to 4,119.77, 6,172.46 and 3,430.87 is: 5,140.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,119.77 : 6,172.46 = 3,430.87 : x
  2. Step 2: Convert to fraction form
    4,119.77/6,172.46 = 3,430.87/x
  3. Step 3: Cross multiply
    4,119.77x = 6,172.46 × 3,430.87
  4. Step 4: Simplify right side
    4,119.77x = 21,176,890.69
  5. Step 5: Solve for x
    x = 21,176,890.69/4,119.77
  6. Step 6: Final answer
    x = 5,140.31

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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.