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Finding the Fourth Proportional to 3,800.40, 5,701.40 and 1,203.36

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Solution

The fourth proportional to 3,800.40, 5,701.40 and 1,203.36 is: 1,805.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,800.40 : 5,701.40 = 1,203.36 : x
  2. Step 2: Convert to fraction form
    3,800.40/5,701.40 = 1,203.36/x
  3. Step 3: Cross multiply
    3,800.40x = 5,701.40 × 1,203.36
  4. Step 4: Simplify right side
    3,800.40x = 6,860,836.70
  5. Step 5: Solve for x
    x = 6,860,836.70/3,800.40
  6. Step 6: Final answer
    x = 1,805.29

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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.