Home / 3,622.16-5,431.40-1,770.50

Finding the Fourth Proportional to 3,622.16, 5,431.40 and 1,770.50

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Solution

The fourth proportional to 3,622.16, 5,431.40 and 1,770.50 is: 2,654.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,622.16 : 5,431.40 = 1,770.50 : x
  2. Step 2: Convert to fraction form
    3,622.16/5,431.40 = 1,770.50/x
  3. Step 3: Cross multiply
    3,622.16x = 5,431.40 × 1,770.50
  4. Step 4: Simplify right side
    3,622.16x = 9,616,293.70
  5. Step 5: Solve for x
    x = 9,616,293.70/3,622.16
  6. Step 6: Final answer
    x = 2,654.85

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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.