Home / 6,281.26-9,419.09-2,120.19

Finding the Fourth Proportional to 6,281.26, 9,419.09 and 2,120.19

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Solution

The fourth proportional to 6,281.26, 9,419.09 and 2,120.19 is: 3,179.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,281.26 : 9,419.09 = 2,120.19 : x
  2. Step 2: Convert to fraction form
    6,281.26/9,419.09 = 2,120.19/x
  3. Step 3: Cross multiply
    6,281.26x = 9,419.09 × 2,120.19
  4. Step 4: Simplify right side
    6,281.26x = 19,970,267.49
  5. Step 5: Solve for x
    x = 19,970,267.49/6,281.26
  6. Step 6: Final answer
    x = 3,179.34

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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.