Home / 4,622.36-6,930.50-1,991.48

Finding the Fourth Proportional to 4,622.36, 6,930.50 and 1,991.48

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Solution

The fourth proportional to 4,622.36, 6,930.50 and 1,991.48 is: 2,985.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,622.36 : 6,930.50 = 1,991.48 : x
  2. Step 2: Convert to fraction form
    4,622.36/6,930.50 = 1,991.48/x
  3. Step 3: Cross multiply
    4,622.36x = 6,930.50 × 1,991.48
  4. Step 4: Simplify right side
    4,622.36x = 13,801,907.53
  5. Step 5: Solve for x
    x = 13,801,907.53/4,622.36
  6. Step 6: Final answer
    x = 2,985.90

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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.