Home / 2,185.93-3,279.95-1,090.45

Finding the Fourth Proportional to 2,185.93, 3,279.95 and 1,090.45

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Solution

The fourth proportional to 2,185.93, 3,279.95 and 1,090.45 is: 1,636.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185.93 : 3,279.95 = 1,090.45 : x
  2. Step 2: Convert to fraction form
    2,185.93/3,279.95 = 1,090.45/x
  3. Step 3: Cross multiply
    2,185.93x = 3,279.95 × 1,090.45
  4. Step 4: Simplify right side
    2,185.93x = 3,576,624.20
  5. Step 5: Solve for x
    x = 3,576,624.20/2,185.93
  6. Step 6: Final answer
    x = 1,636.20

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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.