Home / 5,613.12-7,745.58-3,255.39

Finding the Fourth Proportional to 5,613.12, 7,745.58 and 3,255.39

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Solution

The fourth proportional to 5,613.12, 7,745.58 and 3,255.39 is: 4,492.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,613.12 : 7,745.58 = 3,255.39 : x
  2. Step 2: Convert to fraction form
    5,613.12/7,745.58 = 3,255.39/x
  3. Step 3: Cross multiply
    5,613.12x = 7,745.58 × 3,255.39
  4. Step 4: Simplify right side
    5,613.12x = 25,214,883.68
  5. Step 5: Solve for x
    x = 25,214,883.68/5,613.12
  6. Step 6: Final answer
    x = 4,492.13

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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.