Home / 2,199.65-3,300.35-739.22

Finding the Fourth Proportional to 2,199.65, 3,300.35 and 739.22

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Solution

The fourth proportional to 2,199.65, 3,300.35 and 739.22 is: 1,109.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,199.65 : 3,300.35 = 739.22 : x
  2. Step 2: Convert to fraction form
    2,199.65/3,300.35 = 739.22/x
  3. Step 3: Cross multiply
    2,199.65x = 3,300.35 × 739.22
  4. Step 4: Simplify right side
    2,199.65x = 2,439,664.53
  5. Step 5: Solve for x
    x = 2,439,664.53/2,199.65
  6. Step 6: Final answer
    x = 1,109.12

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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.