Home / 4,139.90-6,209.82-1,674.05

Finding the Fourth Proportional to 4,139.90, 6,209.82 and 1,674.05

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Solution

The fourth proportional to 4,139.90, 6,209.82 and 1,674.05 is: 2,511.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.90 : 6,209.82 = 1,674.05 : x
  2. Step 2: Convert to fraction form
    4,139.90/6,209.82 = 1,674.05/x
  3. Step 3: Cross multiply
    4,139.90x = 6,209.82 × 1,674.05
  4. Step 4: Simplify right side
    4,139.90x = 10,395,518.12
  5. Step 5: Solve for x
    x = 10,395,518.12/4,139.90
  6. Step 6: Final answer
    x = 2,511.06

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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.