Home / 3,090.28-4,641.82-2,986.60

Finding the Fourth Proportional to 3,090.28, 4,641.82 and 2,986.60

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Solution

The fourth proportional to 3,090.28, 4,641.82 and 2,986.60 is: 4,486.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.28 : 4,641.82 = 2,986.60 : x
  2. Step 2: Convert to fraction form
    3,090.28/4,641.82 = 2,986.60/x
  3. Step 3: Cross multiply
    3,090.28x = 4,641.82 × 2,986.60
  4. Step 4: Simplify right side
    3,090.28x = 13,863,259.61
  5. Step 5: Solve for x
    x = 13,863,259.61/3,090.28
  6. Step 6: Final answer
    x = 4,486.09

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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.