Home / 3,091.25-4,637.64-900.00

Finding the Fourth Proportional to 3,091.25, 4,637.64 and 900.00

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Solution

The fourth proportional to 3,091.25, 4,637.64 and 900.00 is: 1,350.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,091.25 : 4,637.64 = 900.00 : x
  2. Step 2: Convert to fraction form
    3,091.25/4,637.64 = 900.00/x
  3. Step 3: Cross multiply
    3,091.25x = 4,637.64 × 900.00
  4. Step 4: Simplify right side
    3,091.25x = 4,173,850.56
  5. Step 5: Solve for x
    x = 4,173,850.56/3,091.25
  6. Step 6: Final answer
    x = 1,350.22

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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.