Home / 2,727.03-4,090.65-877.90

Finding the Fourth Proportional to 2,727.03, 4,090.65 and 877.90

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Solution

The fourth proportional to 2,727.03, 4,090.65 and 877.90 is: 1,316.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,727.03 : 4,090.65 = 877.90 : x
  2. Step 2: Convert to fraction form
    2,727.03/4,090.65 = 877.90/x
  3. Step 3: Cross multiply
    2,727.03x = 4,090.65 × 877.90
  4. Step 4: Simplify right side
    2,727.03x = 3,591,181.64
  5. Step 5: Solve for x
    x = 3,591,181.64/2,727.03
  6. Step 6: Final answer
    x = 1,316.88

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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.