Home / 3,686.86-5,087.85-2,114.94

Finding the Fourth Proportional to 3,686.86, 5,087.85 and 2,114.94

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Solution

The fourth proportional to 3,686.86, 5,087.85 and 2,114.94 is: 2,918.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.86 : 5,087.85 = 2,114.94 : x
  2. Step 2: Convert to fraction form
    3,686.86/5,087.85 = 2,114.94/x
  3. Step 3: Cross multiply
    3,686.86x = 5,087.85 × 2,114.94
  4. Step 4: Simplify right side
    3,686.86x = 10,760,497.48
  5. Step 5: Solve for x
    x = 10,760,497.48/3,686.86
  6. Step 6: Final answer
    x = 2,918.61

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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.