Home / 5,257.06-7,255.25-3,928.45

Finding the Fourth Proportional to 5,257.06, 7,255.25 and 3,928.45

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Solution

The fourth proportional to 5,257.06, 7,255.25 and 3,928.45 is: 5,421.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,257.06 : 7,255.25 = 3,928.45 : x
  2. Step 2: Convert to fraction form
    5,257.06/7,255.25 = 3,928.45/x
  3. Step 3: Cross multiply
    5,257.06x = 7,255.25 × 3,928.45
  4. Step 4: Simplify right side
    5,257.06x = 28,501,867.22
  5. Step 5: Solve for x
    x = 28,501,867.22/5,257.06
  6. Step 6: Final answer
    x = 5,421.64

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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.