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Finding the Fourth Proportional to 3,899.16, 5,383.26 and 2,483.64

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Solution

The fourth proportional to 3,899.16, 5,383.26 and 2,483.64 is: 3,428.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,899.16 : 5,383.26 = 2,483.64 : x
  2. Step 2: Convert to fraction form
    3,899.16/5,383.26 = 2,483.64/x
  3. Step 3: Cross multiply
    3,899.16x = 5,383.26 × 2,483.64
  4. Step 4: Simplify right side
    3,899.16x = 13,370,079.87
  5. Step 5: Solve for x
    x = 13,370,079.87/3,899.16
  6. Step 6: Final answer
    x = 3,428.96

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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.