Home / 3,685.90-5,086.54-2,114.08

Finding the Fourth Proportional to 3,685.90, 5,086.54 and 2,114.08

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Solution

The fourth proportional to 3,685.90, 5,086.54 and 2,114.08 is: 2,917.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,685.90 : 5,086.54 = 2,114.08 : x
  2. Step 2: Convert to fraction form
    3,685.90/5,086.54 = 2,114.08/x
  3. Step 3: Cross multiply
    3,685.90x = 5,086.54 × 2,114.08
  4. Step 4: Simplify right side
    3,685.90x = 10,753,352.48
  5. Step 5: Solve for x
    x = 10,753,352.48/3,685.90
  6. Step 6: Final answer
    x = 2,917.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.