Home / 4,090.60-5,674.99-3,917.80

Finding the Fourth Proportional to 4,090.60, 5,674.99 and 3,917.80

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Solution

The fourth proportional to 4,090.60, 5,674.99 and 3,917.80 is: 5,435.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,090.60 : 5,674.99 = 3,917.80 : x
  2. Step 2: Convert to fraction form
    4,090.60/5,674.99 = 3,917.80/x
  3. Step 3: Cross multiply
    4,090.60x = 5,674.99 × 3,917.80
  4. Step 4: Simplify right side
    4,090.60x = 22,233,475.82
  5. Step 5: Solve for x
    x = 22,233,475.82/4,090.60
  6. Step 6: Final answer
    x = 5,435.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.