Home / 2,199.39-3,299.90-1,159.35

Finding the Fourth Proportional to 2,199.39, 3,299.90 and 1,159.35

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Solution

The fourth proportional to 2,199.39, 3,299.90 and 1,159.35 is: 1,739.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,199.39 : 3,299.90 = 1,159.35 : x
  2. Step 2: Convert to fraction form
    2,199.39/3,299.90 = 1,159.35/x
  3. Step 3: Cross multiply
    2,199.39x = 3,299.90 × 1,159.35
  4. Step 4: Simplify right side
    2,199.39x = 3,825,739.07
  5. Step 5: Solve for x
    x = 3,825,739.07/2,199.39
  6. Step 6: Final answer
    x = 1,739.45

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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.