Home / 3,420.09-5,139.78-2,033.70

Finding the Fourth Proportional to 3,420.09, 5,139.78 and 2,033.70

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Solution

The fourth proportional to 3,420.09, 5,139.78 and 2,033.70 is: 3,056.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.09 : 5,139.78 = 2,033.70 : x
  2. Step 2: Convert to fraction form
    3,420.09/5,139.78 = 2,033.70/x
  3. Step 3: Cross multiply
    3,420.09x = 5,139.78 × 2,033.70
  4. Step 4: Simplify right side
    3,420.09x = 10,452,770.59
  5. Step 5: Solve for x
    x = 10,452,770.59/3,420.09
  6. Step 6: Final answer
    x = 3,056.29

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1.5x scale

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.