Home / 4,258.75-6,388.13-1,297.21

Finding the Fourth Proportional to 4,258.75, 6,388.13 and 1,297.21

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Solution

The fourth proportional to 4,258.75, 6,388.13 and 1,297.21 is: 1,945.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,258.75 : 6,388.13 = 1,297.21 : x
  2. Step 2: Convert to fraction form
    4,258.75/6,388.13 = 1,297.21/x
  3. Step 3: Cross multiply
    4,258.75x = 6,388.13 × 1,297.21
  4. Step 4: Simplify right side
    4,258.75x = 8,286,707.69
  5. Step 5: Solve for x
    x = 8,286,707.69/4,258.75
  6. Step 6: Final answer
    x = 1,945.81

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Similar ratio
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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.