Home / 5,257.14-7,255.34-3,928.53

Finding the Fourth Proportional to 5,257.14, 7,255.34 and 3,928.53

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Solution

The fourth proportional to 5,257.14, 7,255.34 and 3,928.53 is: 5,421.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,257.14 : 7,255.34 = 3,928.53 : x
  2. Step 2: Convert to fraction form
    5,257.14/7,255.34 = 3,928.53/x
  3. Step 3: Cross multiply
    5,257.14x = 7,255.34 × 3,928.53
  4. Step 4: Simplify right side
    5,257.14x = 28,502,843.15
  5. Step 5: Solve for x
    x = 28,502,843.15/5,257.14
  6. Step 6: Final answer
    x = 5,421.74

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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.