Home / 5,615.25-8,425.97-2,107.68

Finding the Fourth Proportional to 5,615.25, 8,425.97 and 2,107.68

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Solution

The fourth proportional to 5,615.25, 8,425.97 and 2,107.68 is: 3,162.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.25 : 8,425.97 = 2,107.68 : x
  2. Step 2: Convert to fraction form
    5,615.25/8,425.97 = 2,107.68/x
  3. Step 3: Cross multiply
    5,615.25x = 8,425.97 × 2,107.68
  4. Step 4: Simplify right side
    5,615.25x = 17,759,237.91
  5. Step 5: Solve for x
    x = 17,759,237.91/5,615.25
  6. Step 6: Final answer
    x = 3,162.68

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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.