Home / 4,301.12-6,453.30-1,991

Finding the Fourth Proportional to 4,301.12, 6,453.30 and 1,991

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Solution

The fourth proportional to 4,301.12, 6,453.30 and 1,991 is: 2,987.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,301.12 : 6,453.30 = 1,991 : x
  2. Step 2: Convert to fraction form
    4,301.12/6,453.30 = 1,991/x
  3. Step 3: Cross multiply
    4,301.12x = 6,453.30 × 1,991
  4. Step 4: Simplify right side
    4,301.12x = 12,848,520.30
  5. Step 5: Solve for x
    x = 12,848,520.30/4,301.12
  6. Step 6: Final answer
    x = 2,987.25

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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.