Home / 3,887.20-5,361.60-2,394.64

Finding the Fourth Proportional to 3,887.20, 5,361.60 and 2,394.64

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Solution

The fourth proportional to 3,887.20, 5,361.60 and 2,394.64 is: 3,302.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.20 : 5,361.60 = 2,394.64 : x
  2. Step 2: Convert to fraction form
    3,887.20/5,361.60 = 2,394.64/x
  3. Step 3: Cross multiply
    3,887.20x = 5,361.60 × 2,394.64
  4. Step 4: Simplify right side
    3,887.20x = 12,839,101.82
  5. Step 5: Solve for x
    x = 12,839,101.82/3,887.20
  6. Step 6: Final answer
    x = 3,302.92

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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.