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Finding the Fourth Proportional to 4,079.16, 5,636.16 and 3,379.32

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Solution

The fourth proportional to 4,079.16, 5,636.16 and 3,379.32 is: 4,669.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.16 : 5,636.16 = 3,379.32 : x
  2. Step 2: Convert to fraction form
    4,079.16/5,636.16 = 3,379.32/x
  3. Step 3: Cross multiply
    4,079.16x = 5,636.16 × 3,379.32
  4. Step 4: Simplify right side
    4,079.16x = 19,046,388.21
  5. Step 5: Solve for x
    x = 19,046,388.21/4,079.16
  6. Step 6: Final answer
    x = 4,669.19

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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.