Home / 5,626.97-7,765.07-3,109.32

Finding the Fourth Proportional to 5,626.97, 7,765.07 and 3,109.32

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Solution

The fourth proportional to 5,626.97, 7,765.07 and 3,109.32 is: 4,290.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,626.97 : 7,765.07 = 3,109.32 : x
  2. Step 2: Convert to fraction form
    5,626.97/7,765.07 = 3,109.32/x
  3. Step 3: Cross multiply
    5,626.97x = 7,765.07 × 3,109.32
  4. Step 4: Simplify right side
    5,626.97x = 24,144,071.91
  5. Step 5: Solve for x
    x = 24,144,071.91/5,626.97
  6. Step 6: Final answer
    x = 4,290.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.