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Finding the Fourth Proportional to 3,903.58, 5,839.82 and 3,389.64

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Solution

The fourth proportional to 3,903.58, 5,839.82 and 3,389.64 is: 5,070.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.58 : 5,839.82 = 3,389.64 : x
  2. Step 2: Convert to fraction form
    3,903.58/5,839.82 = 3,389.64/x
  3. Step 3: Cross multiply
    3,903.58x = 5,839.82 × 3,389.64
  4. Step 4: Simplify right side
    3,903.58x = 19,794,887.46
  5. Step 5: Solve for x
    x = 19,794,887.46/3,903.58
  6. Step 6: Final answer
    x = 5,070.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.