Home / 3,685.68-5,086.53-2,114.28

Finding the Fourth Proportional to 3,685.68, 5,086.53 and 2,114.28

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Solution

The fourth proportional to 3,685.68, 5,086.53 and 2,114.28 is: 2,917.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,685.68 : 5,086.53 = 2,114.28 : x
  2. Step 2: Convert to fraction form
    3,685.68/5,086.53 = 2,114.28/x
  3. Step 3: Cross multiply
    3,685.68x = 5,086.53 × 2,114.28
  4. Step 4: Simplify right side
    3,685.68x = 10,754,348.65
  5. Step 5: Solve for x
    x = 10,754,348.65/3,685.68
  6. Step 6: Final answer
    x = 2,917.87

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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.