Home / 3,942.16-5,442.44-2,617.68

Finding the Fourth Proportional to 3,942.16, 5,442.44 and 2,617.68

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Solution

The fourth proportional to 3,942.16, 5,442.44 and 2,617.68 is: 3,613.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.16 : 5,442.44 = 2,617.68 : x
  2. Step 2: Convert to fraction form
    3,942.16/5,442.44 = 2,617.68/x
  3. Step 3: Cross multiply
    3,942.16x = 5,442.44 × 2,617.68
  4. Step 4: Simplify right side
    3,942.16x = 14,246,566.34
  5. Step 5: Solve for x
    x = 14,246,566.34/3,942.16
  6. Step 6: Final answer
    x = 3,613.90

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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.